单选题：Everybody should try to do ________ best on the exam.

题目内容：

Everybody should try to do ________ best on the exam. A．his
B．our
C．its
D．their

参考答案：

答案解析：

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Whatever you do, you ________click with the right mouse button or the program w

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________a binding contract last year and it is still valid.A．We have signed B．We

分类：英语题型：单选题

The company is going to hand _________ the free samples tomorrow.A．up B．out C．o

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