_______ in the regulations that you shouldn't tell other people the password of your e-mail account.
| A．What is required | B．What requires | C．It is required | D．It requires |
--Excuse me, Look at the sign NO SMOKING! --Sorry, I ________ it.
| A．don't see | B．didn't see | C．haven't seen | D．won't see |
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 |