Why don't you_____smoking？ It's very harmful．
I tried many times， but it's really hard．（ ）
| A． |
give up |
B． |
ring up |
C． |
put up |
It's said that the Weast Lake is one of the most beautiful lakes in China．Do you think so？
Yeach，I _____there twice bofore!It attracts lots of tourists from home and aboard．（ ）
A．have beenB．have goneC．goD．went
Waiter，I'd like some Ningbo Dumplings．
Sorry，sir．Ningbo Dumpings ______only for lunch and dinner．（ ）
A．serveB．served
C．are servedD．are serving
Have you returned the book to the library yet？
Not yet．Don't worry．I ______it soon．（ ）
A．returnB．returned
C．have returnedD．will return
I really want to join the square dance．Can I learn the dance well？
Yes，Mom!Nothing is impossible______you put your heart into it!（ ）
A．as long asB．as soon as
C．even ifD．unless
Don't ______late．Betty．You have to go to school early tomorrow．
OK，Mom．I'll go to bed right now．（ ）
A．put upB．stay upC．sit downD．fall down