单项选择题

After three full hours of laboring over the market report, he stood up, went outside and ______ his back.

A．extended
B．strained
C．pulled
D．stretched
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单项选择题
The vice-president and production director of the company _______ the welcoming ceremony held by the Capital Hill this evening.
A．is to attend
B．are to attend
C．were to attend
D．have attended
单项选择题
That ______ me of the days I spent in the countryside.
A．reminded
B．remembered
C．memorized
D．recalled
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