单项选择题

A．problems
B．results
C．questions
D．bothers
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单项选择题
A．expressB．sayC．talkD．speak
A．express
B．say
C．talk
D．speak
单项选择题
Having (finished) his term paper (before the deadline), (it was delivered) to the professor (before) the class.
A．finished
B．before the deadline
C．it was delivered
D．before
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