问题
选择题
| —Must I finish my homework today, Ms Liu? —No, ________. |
A. you mustn't B. you don't have to C. you can't |
答案
答案：B
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| —Must I finish my homework today, Ms Liu? —No, ________. |
A. you mustn't B. you don't have to C. you can't |
答案：B