Work hard, ______ you'll pass the exam．
A. and B. or C. but
It's cold，so we decided ______at home．
A. stay B. to stay C. staying
--Is Rick there？
---No，he ______for Beijing three days ago．
A. left B. leaves C. leaving
---How much ______do you need?
---One spoon.
A. eggs B. sugar C. onion
---Can you go to the movies tomorrow night?
---Sorry, I ______study for an English test.
A. can’t B. mustn’t C. must
We have more free time this term because we have____homework to do.
A. most B. fewer C. less
