－Would you like to go bike riding with us tomorrow?

－Sure, ________ I am busy．

A．since

B．unless

C．when

D．until

－You didn't call Mary before you left, did you?

－________．I forgot her telephone number．

A．No, I didn't

B．Yes, I did

C．Yes, I didn't

D．No, I did．

－There will be an exciting basketball match on CCTV－5 tonight．

－Really?________ exciting news!

A．What

B．How

C．What an

D．How an

－Who would you like to see you off at the airport?

－________．Just say “good-bye ” at home．

A．Everybody

B．Anybody

C．Nobody

D．Somebody

－How often do you go to English classes, Mr Lin?

－________．That is Monday, Wednesday and Friday．

A．Every three days．

B．Twice a week．

C．Once a week．

D．Every other day．

－Could you tell me which floor ________．

－It's on the third floor．

A．Betty's classroom is

B．Betty's classroom is on

C．is Betty's classroom on

D．is Betty's classroom

－It's not difficult for ten workers to finish the task in two months．

－Yes．________．

A．When the cat's away, the mice will play

B．Every dog has its day

C．Many hands make light work

D．Don't put all your eggs in one basket

－Susan, why are you still here? They are all ready to start．

－I'm sorry, but I ________ when to leave．

A．don't tell

B．didn't tell

C．haven't told

D．wasn't told

－Could you tell me something about the park in your town centre?

－OK．It ________ a small lake and several hills．

A．is made in

B．is made by

C．is made from

D．consists of

－Can I join their club?

－I am afraid you will be refused ________ you've passed all their tests．

A．if

B．although

C．unless

D．since