You are not permitted to use your mobile phone during the test. A. You should use your mobile phones during the test. B. You may use your mobile phone during the test. C. You mustn't your use

You are not permitted to use your mobile phone during the test.

A. You should use your mobile phones during the test.
B. You may use your mobile phone during the test.
C. You mustn't your use mobile phones during the test.
D. You needn't your use mobile phones during the test.

Trả lời

Chọn C

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