—I'm afraid we can't work out the math problem________the teacher helps us.
—That's true. It's too difficult.
A.if B.unless C.because D.as soon as
—May I use your computer?
—________. I'm working on it.
A.Glad to hear that B.It doesn't matter C.That's all right D.I'm sorry
Amy has read many history books, so she learns history________ of all the subjects.
A.well B.bad C.best D.worst
—Look! The children ________.
—How happy they are!
A.was dancing B.danced C.are dancing D.dances
—You seem tired. What's wrong?
—I ________ to study for my English test last night.
A.picked up B.woke up C.cheered up D.stayed up
I don’t like Sun Cinema ________ it has bad service.
A.because B.although C.unless D.until
