—Which is _______, the sun, the moon or the earth?
—Of course the sun.
A. smaller B. the smallest C. the biggest
一I feel really ________ before interviews．
一Take it easy．I’m sure you are the best．
| A．relaxed | B．serious |
| C．nervous | D．cool |
一Do you mind if I sit here?
一 ________．It’s for Miss Wood．
| A．Not at all | B．Never mind |
| C．You’d better not | D．Of course not |
一It looks 1ike a kind of cat．What do you think?
一Yes, I ________ ．
| A．understand | B．know |
| C．mean | D．agree |
一Do you know ________ Jenny comes to school every day?
一Of course I do．She rides her bike．
| A．whether | B．when | C．how | D．why |
Joe has been studying Chinese for three months．but he can ________ understand people when they speak Chinese．
| A．nearly | B．certainly |
| C．usually | D．hardly |