Module 2 DNA—the Secret of Life
单元测试题
单项选择（1X15）
21------ What do you suppose made her so happy?
------ ____________ the entrance examination.
A. Because of pasting B. Because he pasted C. having been past D. having pasted
22.I lay in the sofa, enjoying the beautiful music Jack had __________ out of his DVD.
A. come B. it come C. it coming D. coming
23.I’d love ________ to your party last Sunday if not because of the unexpected guests.
A to go B. going C. having gone D. to have
