单项选择题

I was______ which country to visit in the coming summer vacation.

A．worrying
B．doubling
C．finding
D．wondering
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单项选择题
The committee members propose that the plan______ postponed for a few days.
A．being
B．been
C．to be
D．be
单项选择题
As Edison grew _______, he never lost his interest in science.
A．elder
B．older
C．the elder
D．the oldest
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