—Must I clean the room now?
—No, you ________. You can do it later.
A. needn’t B. can’t C. may not
There’s little ________ left at home. Go and buy some, dear.
A. carrots B. potatoes C. rice
—How long can I keep this dictionary?
—Two weeks. You must ________ it on time.
A. collect B. call C. return
The 31st Olympic Games will take place ________ August, 2016.
A. in B. on C. At
—Excuse me. Where is ________ school library? —This way, please.
A. an B. the C. A
Nancy and Kate are good friends. ________ are both from England.
A. We B. You C. They