Why ____ you keep troubling your mother with such question while he is busy .
| A．can | B．will | C．would | D．must |
---Mr. White didn’t come last night, did he?
---No. We for him. A whole night was wasted.
A. had waited B. have been waiting C. were waiting D, had been waiting
I don’t think the two parties can agreement in the near future.
| A．arrive | B．reach | C．reach for | D．arrive at |
---I beg your pardon!
---Oh, youto me carefully. (just now)
| A．didn’t | B．haven’t listened | C．don’t listen | D．weren’t listening |
． Knowledge of English is a must in international trade.
| A．the | B．/ | C．A | D．An |
Where on earth have you been? We you back much earlier.
| A．were expecting | B．are expecting | C．had expected | D．expect |