II．单项选择（共30小题；每小题1分，满分30分）
21. ---When can I come for the photos? I need them tomorrow afternoon?
---They ________ be ready by 12:00.
A. can B. might C. would D. should
22. He wrote a long moving poem _________ Qian Xuesen who is known as “ Father of Chinese Rocketry.”
A. in place of B. in favor of C. in memory of D. in support of
