--- Are you happy with your grades in the math exam? ---Not at all. I can’t have _______.
| A．a worse one | B．a better one |
| C．the worst one | D．the best one. |
— Would you like to talk with your father or mother, Liu Mei?
— We don’t have the same topic(话题).
| A．Either. | B．Both. | C．Neither. | D．None. |
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 |