一How often do I need to feed the birds?-They food every day,or they will be hungry. A. must give B. mustn't give C. must be given D. mustn't be given 题目和参考答案——青夏教育精英家教网—

题目内容

4. 一How often do I need to feed the birds?

—They food every day,or they will be hungry.

A. must give B. mustn't give

C. must be given D. mustn't be given

4.C

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