单项选择题

The new research project was led by the()engineer.

A．main
B．major
C．chief
D．primary

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单项选择题
All but one()going to take part in the sports meet()tomorrow.

A．is; which is to hold is
B．are; to be taken place
C．are; to be held
D．that is to take place
单项选择题
—We really enjoy ourselves at the party. Thanks again, Mr. and Mrs. White. —(). Just drop in whenever you feel like it.

A．No thanks
B．Nice having you here
C．Forget it
D．With pleasure
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