— Where are my new sneakers? Have you seen them?
一How I know? I’ m your sister, not your servant.
| A．shall | B．will | C．should | D．might |
20. ----- Did you go to see the football match in the stadium ?
----- _____, but my brother called on me.
| A．I’d like to | B．I’d like to have | C．I wouldn’t like it | D．I like to |
19. It is reported that China has created the first man-made sun in the world recently, ______ ?
| A．isn’t it | B．is it | C．hasn’t it | D．has it |
18. ----- Has Mary finished writing her article ?
----- No, and it _____ before class was over.
| A．should be finished | B．should finish |
| C．should have finished | D．ought to have been finished |
17. I really _____ thank you enough. It’s been an amazing day.
| A．needn’t | B．should | C．must | D．Cannot |
16. The computer program is a puzzle to me. The more I think of it, the more questions I think of _____.
| A．ask | B．asked | C．being asked | D．to ask |