摘要：Could/May can, Can The teacher told the students that Mars has two moons. My cousin asked me if I had ever been to Beijing. He said that he would finish the task in two days. Do you know if it takes very long to travel from Earth to Mars. I am wondering whether Lucy will come or not tomorrow. 9B Unit2 Robots
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—Someone is knocking at the door. Who ______ it be?
—It ______ be Tom. He is still in the school.
—It ______ be Tom. He is still in the school.
| A．may; can’t | B．can; mustn’t |
| C．might; couldn’t | D．could; may not |
--There is a new film on, will you __________ finish your homework before 7:00 tonight?
--I’m afraid I _________. I have too much homework today. Let’s see the movie this weekend!
--I’m afraid I _________. I have too much homework today. Let’s see the movie this weekend!
| A．can; can’t | B．be able to; can’t | C．may; am not able to | D．could; may not |
-- _________ you change a pound for me, please?
-- I _________ have some. Let me see.
A. Should; might B. Can; must C. Could; may D. Will; would
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