单项选择题

This electronic dictionary ______ extremely useful.

A．is
B．am
C．are
D．be
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单项选择题
I'd （）you to help me tonight.

A．have
B．like
C．persuade
D．order
单项选择题
A: The game ______ start until seven. Let's grab some snacks before that. B: Good. I'll have a hot dog.
A．is
B．didn't
C．doesn't
D．wasn't
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