--- May I go swimming now?
--- No, you ______. You must finish your homework first.
| A．mustn’t | B．may not |
| C．couldn’t | D．needn’t |
If you can’t work out the math problem, you can ask your teacher ___some____.
| A．on ; help | B．for ; helps |
| C．on ; helps | D．for; help |
The work is ___difficult for the boy to do. Please give him some help.
| A．too | B．of | C．at | D．By |
—How do you study English? —I study by ___ more.
| A．speak | B．speaking | C．telling | D．Talking |
–Do you know __________tomorrow? --At 8 o’clock.
| A．when did Sally come | B．when Sally came |
| C．when will Sally come | D．when Sally will come |
--How clean and tidy your bedroom is! --Thanks. It ______ every day.
| A．cleans | B．cleaned |
| C．is cleaned | D．was cleaned |