Our school has a big library. There are about ten books in it.
| A．thousand | B．thousands | C．thousand of | D．thousands of |
—Hi，can I help you？
—________．
| A．Yes，please |
| B．No，I can’t |
| C．Yes，I can |
| D．You are welcome |
Jenny，put on your coat ________ you will catch a cold．
| A．but |
| B．and |
| C．or |
| D．so |
—Can I borrow your dictionary？
—Yes，you ________．
A．can
B．must
C．should
—Do you know the song Come on，Haixi？
—Yes，and I ________ sing it well．
A．must
B．can
C．need
John can play ________ guitar，but he can’t play ________ chess．
A．the；／
B．／；the
C．the；the