单项选择题

We insisted ______ by the president.

A．on being seen
B．on seeing
C．to see
D．to be seen
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单项选择题
I got to the cinema and saw that the film ______ .
A．already started
B．had already started
C．starts
D．had been started
单项选择题
It's about time you ______ a little less money.
A．spend
B．to spend
C．spent
D．had spent
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