It’s getting dark. Please ____ the light.
A. turn off
B. turn on
C. turn up
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Kate, could you ___ the radio a bit? Your father is sleeping now.
A. turn on
B. turn up
C. turn down
Your classroom is so dirty. Everyone should keep it ___.
A. clean
B. dry
C. quiet
What a cold day! Sam, you’d better ___ more clothes.
A. put on
B. to put on
C. to take off
— Dad, must I finish my homework today?— No, you ___ . You ___ do it tomorrow.
A. mustn’t/can
B. needn’t/can
C. mustn’t/must