You _____ read a book in the sun—it'll do harm to your eyes．
| A．couldn't | B．wouldn't | C．needn't | D．mustn't |
The car ________ and stopped at the red traffic lights.
| A．got on | B．got off | C．slowed down | D．picked up |
________ I close the window? It's so cold here.
| A．Will | B．Do | C．Would | D．Shall |
I bought a new dictionary and it ________ me 30 yuan.
| A．paid | B．spent | C．took | D．cost |
--Must I clean the room now? --No, you __________.
| A．can' t | B．may not | C．mustn' t | D．needn' t |
It is better to teach a man to fish than ________ him fish.
| A．to give | B．giving | C．to find | D．finding |