单项选择题

It's not an easy task. However, please have him ______ it.

A．do
B．to do
C．done
D．doing
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单项选择题
There wasn't a single person ______ at the beach.
A．in sight
B．on sight
C．seeing
D．to see
单项选择题
Are you ______ with your present salary7
A．satisfying
B．glad
C．happy
D．content
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