—Listen! Is Betty singing in the next room? —No. It ______ be Betty. She has gon
题型：模拟题难度：来源：
—Listen! Is Betty singing in the next room?
—No. It ______ be Betty. She has gone to Beijing. |
| [ ] |
A. mustn"t
B. may
C. can"t
D. can |
答案
| C |
举一反三
—I saw Kevin in the supermarket this morning.
—No, it ______ him. He moved to Canada last week. |
| [ ] |
A. can be
B. must be
C. can"t be
D. mustn"t be |
—Whose book is this?
—It _______ be Lucy"s. Look, here is her name. |
| [ ] |
A. may
B. must
C. can"t
D. need |
| Tony ________ be in the classroom. I saw him in the library just now. |
| [ ] |
A. can"t
B. mustn"t
C. needn"t
D. won"t |
| The light is on in Mr. Green"s room. He _______ be at home. |
| [ ] |
A. must
B. can
C. mustn"t
D. can"t |
—Look! It ________ be the new woman manager.
—It ________ be her. She has just left for Shanghai. |
[ ] |
A. can; mustn"t
B. must; can"t
C. must; mustn"t
D. can"t; must |
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