It’s every policeman’s dream to keep people and the traffic in good order.
| A．safe | B．healthy | C．busy | D．famous |
China has the _____ population in the world.
| A．smallest | B．most | C．largest | D．large |
—David has made great progress recently.
—_____, and _____.
| A．So he has; so you have | B．So he has; so have you |
| C．So has he; so have you | D．So has he; so you have |
—_____ you _____ your homework yet?
—Yes, I _____ it ten minutes ago.
| A．Did; do; finished | B．Have; done; have finished |
| C．Have; done; finished | D．Will; do; finish |
Now most families have only one child _____ our country’s one-child policy.
| A．so | B．because |
| C．because for | D．because of |
— Hello, this is Tom. Is Jack in?
— Sorry, he to his uncle’s home. May I take a message?
| A．has been | B．go | C．is going | D．has gone |