It’s too cold. You had better ______ your coat.
| A．don’t take off |
| B．not take off |
| C．don’t put on |
| D．not put on |
____________ people went to the concert which was held in People’s Square the night of May Day.
| A．Three thousand, in | B．Thousands, on |
| C．Many thousand, in | D．Thousands of, on |
You should ____________ your hands if you want to ask teachers for help.
| A．give up | B．fix up | C．cheer up | D．put up |
There is someone knocking loudly these days, I can’t stand the ____________.
| A．sound | B．voice | C．noise | D．listening |
We have 3 rooms ____________ , but I can’t decide ____________ .
| A．to live, to choose which one | B．lived, choose which one |
| C．to live in, which one to choose | D．live, which one |
--- May we leave the classroom now?
--- No, you ____________ . You ____________ to leave before the bell rings.
| A．mustn’t, are allowed | B．don’t have to, are allowed |
| C．needn’t, aren’t allowed | D．can’t, aren’t allowed |