单项选择题

The students have to come back before dark,______

A．do they
B．haven't they
C．don't they
D．have they
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单项选择题
Why did the small man come to the party
A． He came to ask for a drink.
B． He came in to look for someone.
C． He came to ask for help.
单项选择题
What can we learn from what tile speaker said
[A] He is a retired teacher of history.
B. He thinks children were happier in the past.
C. He lives on a farm far away from cities.
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