gmatbull
Announcing that one of its key successes had been the recent well-received beta launch, the Internet startup claimed it would introduce several new products to the web community during the next quarter.
A: ...
B: its key successes has been the recently
C: its key successes is the recently
D: their key successes is the recent
E: their key successes had been the recent
D and E are out for using plural "their"
Between A, B, and C;
hirendhanak: I am assuming that you are also looking for the difference between A, B and C.
The key point here is that we will use past perfect in this sentence: one of its key successes had been
not has been or is.
The reason is that 'beta launch is an event that took place and was a success before the Internet start up announced it'. The verb 'claimed' shows you that it happened in the past, hence an event further in the past will need to use past perfect.
To review, we use past perfect tense when 2 events take place in the past but one takes place before the other. Here, beta launch became a success before the company claimed it would introduce several new products. So it uses past perfect.
'recent well-received beta launch' is correct. Here recent and well-received form a pair of cumulative adjectives.
There are two types of adjectives: Cumulative and Co-ordinate
Cumulative adjectives - An adjective is “cumulative” when it occurs in a pair or series with other adjectives of different descriptive categories, the adjectives building upon each other and together modifying the noun.
e.g. a big old shaggy dog
big - size
old - age
shaggy - quality
Co-ordinate adjectives - An adjective used in a pair or series with other adjectives within its own descriptive category to describe the same noun. Coordinate adjectives are separated by commas.
I am always impressed by your honest, insightful remarks.
honest - quality
insightful - quality