单项选择题

______ in time, the pills will be effective.

A．Taken
B．Taking
C．Take
D．To take
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单项选择题
He found it increasingly difficult to read, ______ his eyesight was beginning to fail.
A．and
B．for
C．but
D．or
单项选择题
Nine out of ten women ______ about the product said they liked it.
A．to interview
B．to be interviewed
C．interviewed
D．having interviewed
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