问答题

We cannot always______the wind, so new windmills should be so designed that they can also be driven by water.
A．hang on
B．count on
C．hold on
D．come on

A.
A．hang
B.count
C.hold
D.come

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Robots have ______ humans from heavy work and offer us much more free time.
A．freed
B．be freed
C．freedom
D．fresh

A.
A．freed
B．be
B.freedom
D．fresh

I expect that the headmaster will want to______ the leak of the examination questions.
A．inquire for
B．inquire of
C．inquire about
D．inquire into

A.
A．inquire
B.inquire
C.inquire
D.inquire