unfortunately my performance in this set was pathetic,,,,:((((
11A
12B
13D
14D
15A
16E
17A
18C
19E
20B
HELPPPPPPPPPPPPP

well, the explanations for Q 14 17, 18 , 19 are given above few posts you may refer to those.IMO For the rest you may search these questions on the forum or Google , almost all have been solved/discussed before and if you still have doubts pls do post them here.

Hope this helps
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Thanks = Kudos. Kudos are always welcome

Its kk never mind point ur mistake and present ...we will try to help.....
Meanwhile next set will follow in an hour!!!!!!!!!!!!!

Just adding to your explanation why is "Had " not the correct usage....

Mark the work "Indicate" that means someone is talking about a past even in the present time, hence if the later coming up event (yet to be discussed ) in the argument is in past it must be Simple past.

Hope that helps!!

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Consider Kudos , If my post helped!!!!

difference b/w estimated at and estimated to be

Estimated at is used when we want to modify Nouns , bcoz 'at' is a preposition and should be followed by a noun
eg- The age of the sculpture is estimated at 300 years (noun)

Estimated to be can be used for other constructions
eg--the sculpture is estimated to be 300 yrs old
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impossible is nothing

OA's 11 -20

11-e
12-d
13-c
14-d
15-c
16-e
17-a
18-c
19-b
20-a

26. Of all the possible disasters that threaten American agriculture, the possibility of an adverse change in
climate is maybe the more difficult for analysis.
(A) is maybe the more difficult for analysis
(B) is probably the most difficult to analyze
(C) is maybe the most difficult for analysis
(D) is probably the more difficult to analyze
(E) is, it may be, the analysis that is most difficult
27. Published in Harlem, the owner and editor of the Messenger were two young journalists. Chandler Owen j
and A. Philip Randolph, who would later make his reputation as a labor leader.
(A) Published in Harlem, the owner and editor of the Messenger were two young journalists. Chandler
Owen and A. Philip Randolph, who would later make his reputation as a labor leader.
(B) Published in Harlem, two young journalists, Chandler Owen and A. Philip Randolph, who would later
make his reputation as a labor leader, were the owner and editor of the Messenger.
(C) Published in Harlem, the Messenger was owned and edited by two young journalists, A. Philip
Randolph, who would later make his reputation as a labor leader, and Chandler Owen.
(D) The Messenger was owned and edited by two young journalists. Chandler Owen and A. Philip
Randolph, who would later make his reputation as a labor leader, and published in Harlem.
(E) The owner and editor being two young journalists, Chandler Owen and A. Philip Randolph, who would
later make his reputation as a labor leader, the Messenger was published in Harlem.
28. The rise in the Commerce Department's index of leading economic indicators suggest that the economy
should continue its expansion into the coming months. but that the mixed performance of the index's individual
components indicates that economic growth will proceed at a more moderate pace than in the first
quarter of this year.
(A) suggest that the economy should continue its expansion into the coming months, but that
(B) suggest that the economy is to continue expansion in the coming months, but
(C) suggests that the economy will continue its expanding in the coming months, but that
(D) suggests that the economy is continuing to expand into the coming months, but that
(E) suggests that the economy will continue to expand in the coming months, but
29. In three centuries--from 1050 to 1350--several million tons of stone were quarried in France for the building
of eighty cathedrals, five hundred large churches, and some tens of thousands of parish churches.
(A) for the building of eighty cathedrals, five hundred large churches, and some
(B) in order that they might build eighty cathedrals, five hundred large churches, and some
(C) so as they might build eighty cathedrals, five hundred large churches, and some
(D) so that there could be built eighty cathedrals, five hundred large churches, and
(E) such that they could build eighty cathedrals, five hundred large churches, and
30. What was as remarkable as the development of the compact disc has been the use of the new technology to
revitalize, in better sound than was ever before possible, some of the classic recorded performances of the
pre-LP era.
(A) What was as remarkable as the development of the compact disc
(B) The thing that was as remarkable as developing the compact disc
(C) No less remarkable than the development of the compact disc
(D) Developing the compact disc has been none the less remarkable than
(E) Development of the compact disc has been no less remarkable as

well i meant was the pronoun each couldn't refer back to wives (pl)...women (pl). so it should be pronoun disagreement, sorry for the mistake. I don't have the og 10 so don't know the official explanation. one more thing wrong with B is ----Hadley Richardson, Pauline Pfeiffer, Martha Gelhorn, and Mary Welsh--each of them Hemingway's
wives--were strong and, interesting women (them is not needed) a, b, and c each of Hemingway's ............would be correct
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Thanks = Kudos. Kudos are always welcome

well I think so far we have done 30 questions , you should only post 20 more today. then we will have a 50 question set. each one can compile his/her takeaway per question and the inputs can be put together ,to get a nice neat list. This will be gr8 while reviewing the questions. what say? btw nice work and we got some good discussion going
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Thanks = Kudos. Kudos are always welcome

Thing is that is that i do not want to waste time there are 250 questions in OG 10 SC....but it sounds good I ll post another 20 by afternoon hpe by that we will finish the present set........