Xi’an is a city with many places of interest and __ tourists come here every year.
| A．thousand of | B．thousand |
| C．thousands | D．thousands of |
Would you mind __ me how ___ the chemistry problem?
| A．telling；to solve | B．telling；solve |
| C．to tell；to solve | D．to tell；solve |
He is so careless that he often_______his school things at home.
| A．puts | B．forgets | C．takes | D．leaves |
--- Was Tom a member of Greener China?
---Yes, he has ___ Greener China for 5 years.
| A．taken in | B．joined | C．been in | D．been to |
The room was very dark, so I couldn’t see anything ______
| A．enough clearly | B．enough clear |
| C．clearly enough | D．clear enough |
--- Can you play tennis with us now?
--- _____. I have to finish my homework first.
| A．Yes, I can’t. | B．No, I mustn’t. | C．I’m afraid not. | D．Of course |