-_______?-It’s green.A. Where is your school bagD. What color is the schoolbagC. What’s this in EnglishD. What color are these schoolbags
—Humans can’t live _______ air.—I agree with you.
He____know the answer, but I’m not sure.A. maybe B. may be C:may D. must
—_______ can I keep the books? —Two weeks.
-My mother is ill in hospital.——_______.A.That’s OK B:.All right C.Thank you D. I’m sorry to hear that.
—You look pale. What’s _______ with you? —I have _______ headache.