—_______ should we clean the library?
—Twice a week.
| A．How many | B．How much | C．How long | D．How often |
–I think students should have mobile phones to call their parents.
- _____. They often use them to play games instead.
| A．I hope so | B．I don’t agree |
| C．No problem | D．Good idea |
–What did the radio say just now?
- Sorry. I didn’t catch it. I _____ something else.
| A．think | B．will think |
| C．was thinking | D．had thought |
– Mum, do you know if Dad _____ a model plane for me?
- I think he will do if he _____ free.
| A．will make; will be | B．makes; is |
| C．makes; will be | D．will make; is |
Last month, doctors used a 3-D printer to rebuild the face of a person ____ had a bad accident.
| A．/ | B．which | C．whom | D．who |
- Shall we climb Nanshan this weekend?
- Good idea! It’s not high. It’s about _____ high.
| A．one hundred fifty meters | B．one hundred and fifty meters |
| C．one-hundered-fifty-meter | D．one-hundred-and-fifty-meter |