The poor child stood there, and ________ what to do, turned to his father for help.
| A．not knowing | B．not knew | C．not to know | D．not know |
—_________T-shirt do you like better, the red one or the blue one?
—I prefer the red one.
| A．How much | B．How many | C．Whose | D．Which |
Your English teacher has never lost his temper, _________he?
| A．has | B．hasn’t | C．did | D．didn’t |
You had better_________because you have to drive back home.
| A．not drinking | B．not drink | C．don’t drink | D．not to drink |
As we all know, it’s not polite to keep others_________for a long time.
| A．wait | B．waited | C．to wait | D．waiting |
An official_________by some reporters on food problems in Shanghai yesterday.
| A．is interviewing | B．is interviewed | C．was interviewing | D．was interviewed |