Explanation Plzz..

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Explanation Plzz..

by akashrg » Tue Mar 25, 2008 12:32 am
During the 1980’s approximately $50 billion in private investment capital is estimated to have left Mexico and added to the strain on the country’s debt-ridden economy.

(A) During the 1980’s approximately $50 billion in private investment capital is estimated to have left Mexico and added
(B) During the 1980’s it is estimated that approximately $50 billion in private investment capital left Mexico and added
(C) It is estimated that there was approximately $50 billion in private investment capital that left Mexico during the 1980’s and added
(D) It is estimated that during the 1980’s approximately $50 billion in private investment capital left Mexico, adding
(E) Approximately $50 billion in private investment capital is estimated as having left Mexico during the 1980’s, adding


OA is D

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by ikant » Wed Mar 26, 2008 9:18 am
Hi, the answer is D. The reasoning being:

The part of sentence "It is estimated..." has the subject "$50 billion capital" and hence it must preced the same.

Secondly, this activity has a present perfect tense " have left". This means the activity is done. The latter part succeeds the activity and hence will take the present form.
"To do is to be"

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by michelsmithm » Mon Mar 31, 2008 3:18 am
Yes D is the correct one.