The dog likes bones. Look, it ______ a bone.
A. eating
B. is eating
C. eat
D. ate
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She must ______ her coat then goes to bed.
A. taking off
B. takes off
C. take off
D. took off
She _____ a letter on the computer.
A. is typing
B. typing
C. type
D. are typing
The water is too much. Please _____ the tap.
A. to turn on
B. turn off
C. turn on
D. to turn off
Let's clean the blackboard.(写出同义句） What ______ the blackboard .
A. about
B. cleaning
C. about cleaning
D. about clean
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