朗文文法改錯2題 - 自學

1.

Former vice president, Ms.Alford, had survey the field
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A B

and found opportunities in the competition's markets.
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C D


答案怎麼會是A？

如果不是的話是一個呢？

2.
The CEO deciding to resign, thereby is accepting all responsibility
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A B
for the scandals jeopardizing the company, has proven to be good for the value
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C D
of the stock.

不懂為甚麼要選B

希望有人可以解答 非常感謝






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