1. 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
答案
[D]
问题:1. B和D 中during的位置不同,意思有不一样么? "在1980期间,据估计..."
"据估计,在1980期间"
2. D中, adding是否有修饰Mexico的可能?我一开始凭这个就排除这个选项了. 句子,
doing(句末) doing可以做什么成分啊?
先谢谢大家指点了 | 
