单项选择题

Is ______ necessary to complete the design before the National Day

A．this
B．that
C．it
D．such
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单项选择题
I sincerely ______ him to make great progress with his new work in a short time.
A．expect
B．hope
C．think
D．suppose
单项选择题
Bob Geldef and his friends did all that they could ______ the poor in Africa.
A．help
B．to help
C．helping
D．be helped
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