单项选择题

You'd better______ on work time, or the boss may be angry with you.

A．not play
B．not to play
C．to not play
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单项选择题
Jim, together with his parents, ______going to visit us this weekend.
A．is
B．are
C．will be
单项选择题
—Thanks for the lovely party and the delicious food. —______
A．No thanks
B．Never mind
C．My pleasure
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