SajjadAhmad
By the mid-1700s, when it began a concerted effort to prevent famine and plague, the French government had fully realized that the success of its state building projects depended on the welfare of its people.
A. By the mid-1700s, when it began a concerted effort to prevent famine and plague, the French government had fully realized
B. Until the mid-1700s, when it had begun a concerted effort to prevent famine and plague, the French government had fully realized
C. By the mid-1700s the French government began a concerted effort to prevent famine and plague, when it fully realized
D. The French government began a concerted effort to prevent famine and plague by the mid-1700s, fully realizing
E. When the French government began a concerted effort to prevent famine and plague, it fully realized by the mid-1700s
this is tense problem. we have 3 point of time/actions inhere. mid 1700, realize, and depend
by mid-1700 shows that we need an action happen before this point so had realized is used. this is easy.
the harder point is to explain the logic of had realize and depended. is had realized happen before depended. no.
had realized happen before mid 1700. end of story. had done is use to show a sequence and this two events is enough.
what about depended.
depended is not related to had realized. it is simply an past action which at the time of speaking-this time is in the past- is exist indefinitely. depend exist before and after realized and its existence , from context of sentence , is in past. so , depend should be in simple past.
i can give you an example similar.
yesterday, i realized that gmat is not hard as pesons think.
is not hard is an action exist indefinitely before and after realized. and it is in present. this is why realized in the past and is not hard is in present.
yesterday, i realized that water boil at 100 degree c.
boil exist indefintely so, it must be in present tense though the main action is in the past. this case rarely happend because normally if the main action is in the past, the supbordinate clause must be in the past tense
yesterday, i told my friends that i would retake gmat.
only 3 action/point of time appear , we already have complex analysis.