The machine ______ in a dry and cool place. |
A. must kept B. must keep C. must be kept D. must be keep |
科目:初中英語(yǔ) 來(lái)源:模擬題 題型:單選題
科目:初中英語(yǔ) 來(lái)源: 題型:014
The machine ________ in a dry and cool place.
[
]
A .must kept |
B .must keep |
C .must be kept |
D .must be keep |
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