大学英语选择题，望高手赐教！

Question

1、 Having been asked to speak at the convention_____.
A. some notes were prepared for Dr. Smith.
B. Some notes were prepared by Dr. Smith
C. The convention members were pleased to hear Dr. Smith
D. Smith prepared some notes

2、It is desirable that he ____.
A. gives up trying
B. give up trying
C. would give up trying
D. is going to give up trying

Answer 1

1.选D,前一句的主语为Dr. Smith.
则后一句的主语也只能为Dr. Smith.选项中只有D项主语为Dr. Smith. 2.选D

Answer 2

1.b
2.a