It has been announced that candidates ______ remain in their seats until all the papers have been collected.
| A．can | B．will | C．may | D．shall |
—Flight 331 _______.I’d better be on my way.Goodbye.
—Bye.Happy landing!
| A．was announced |
| B．is being announced |
| C．has announced |
| D．is announcing |
—What would you do if it _______ tomorrow?
—We have to carry it on, since we’ve got everything ready.
| A．rain | B．rains |
| C．will rain | D．is raining |
Jessica ought to stop work.She has a headache because she _______ too long.
| A．read | B．is reading |
| C．had read | D．has been reading |
She _______ her hairstyle in her hometown before she came to Chongqing for a better job.
| A．would change | B．has changed |
| C．changed | D．was changing |
More than a dozen students in that school _______ abroad to study medicine last year.
| A．sent | B．were sent |
| C．had sent | D．had been sent |