The man became a famous writer when he was ________.
| A．in his fifty | B．in his fifties | C．in fifty years old | D．in fifties |
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
________ you dance？We need some more actors for the talent show．
| A．Need |
| B．Shall |
| C．Must |
| D．Can |