单项选择题

It is estimated that much of a teenager’s time is spent______ with friends.

A．to talk
B．talking
C．being talked
D．having talked
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单项选择题
Johnson hoped it would be ______who would be called upon.
A．has
B．him　
C．he
D．himself
单项选择题
Before she went abroad she spent as much time as she could _____ English .
A．practise to speak
B．practising speaking
C．practise speaking
D．to practise speaking
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