The Chinese enjoy _________ fireworks when some good things happen (发生) in their families.
| A．set off | B．letting off | C．set up | D．setting up |
While Helen __________ the guitar, her mother came in.
| A．was playing | B．is playing | C．played | D．plays |
I like science best. __________, what is your favorite subject?
| A．Sorry | B．Tell me | C．Let me know | D．By the way |
– My hat is out of style. __________?
– Maybe you should buy a new one.
| A．What’s wrong | B．Can I help you |
| C．Do you know | D．What should I do? |
– __________ have you been skating?
– For five hours.
| A．How often | B．How soon | C．How far | D．How long |
There __________ an English speech next week.
| A．will have | B．will be | C．is | D．has |