You are not permitted to use your mobile phones during the test. A. You shouldn’t use your mobile phones during the test. B. You may not use your mobile phones during the test. C. You m
You are not permitted to use your mobile phones during the test.
A. You shouldn’t use your mobile phones during the test.
B. You may not use your mobile phones during the test.
C. You mustn't use your mobile phones during the test.
D. You don’t have to use your mobile phones during the test.