单项选择题

The question ______ again and again.

A．is not worth to be discussed
B．is not worth to discuss
C．is not worthy to be discussed
D．is not worthy to discuss
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单项选择题
I know. But sometimes it is ______ it.
A．hard to not do
B．hard not to do
C．not hard to do
D．hard not doing
单项选择题
Not only ______ me, but they hadn't done a very good repair job either.
A．did the garage overcharge
B．the garage overcharged
C．did overcharge the garage
D．overcharged the garage
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