摘要：28．― Must I return the book to the library today, Miss Liu?― No, you . You can return it tomorrow. A. can’t B. needn’t C. mustn’t D. won’t
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— Must I return the book this week?
— No, you ____. You can _ it for 20 days.
A. mustn't: keep B. needn't; borrow C. needn't; keep D. mustn't; borrow
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—Must I return the book this week?
— No, you ____. You can ____ it for 20 days.
| A．mustn't: keep | B．needn't; borrow |
| C．needn't; keep | D．mustn't; borrow |
—Must I return the hook tomorrow morning? —No, you _ .You can keep it longer.
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| A．mustn't | B．can't | C．needn't | D．couldn't |