He to the party this evening if he has to look after his younger sister.
| A．needn’t to come | B．doesn’t need to come |
| C．doesn’t need come | D．needs not come |
— When will Mr.Brown be back to China ?
— Sorry, I don’t know ________.
| A．when did he go abroad |
| B．when he is going abroad |
| C．how soon will he be back |
| D．how long he will stay abroad |
—I’m not sure ______there are living things on other planets or not .
—Even scientists aren’t sure about it.
| A．where | B．why | C．what | D．whether |
—I’m very tired these days because of hard work.
—Why not ______music ? It can make you ______
| A．listen to ; to relax | B．to listen to ; to relax |
| C．listening to ; relax | D．listen to ;relax |
—Don’t ______the rubbish everywhere . It’s our duty to protect the environment.
— I’m sorry.I won’t do that again.
| A．put away | B．throw away |
| C．take away | D．give away |
—who is the man over there ? Is it Mr.Wang ?
—No, it _____be him .Mr.Wang is much fatter.
| A．can’t | B．need |
| C．mustn’t | D．may |