单项选择题

On April 1^st they flew to Beijing, ______ they stayed several days.

A. when
B. where
C. which
D. there

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单项选择题

The father was delighted to hear the child ______ that.

A. to say
B. to have said
C. say
D. said

单项选择题

John’s success in his career will he a great ______ to his aged parents.

A. satisfaction
B. concentration
C. attraction
D. solution

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