No one________ in the classroom at that

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问题选择题

No one________ in the classroom at that time. [ ]

A. was

B. is

C. were

D. are

答案

答案：A

填空题

根据句意及首字母填空。

1. I i_____ many friends to my party.

2. May I u_____ your Walkman? Mine doesn't work.

3. I'm going to have an important m_____.

4.—What do you do after you get up every day?

—I brush my teeth and w_____ my face.

5. It's dirty here. Could you please s_____ the floor?

单项选择题

堆栈指针的作用是（）。

A．指明栈底的位置

B．指明栈顶的位置

C．操作数地址

D．指令的地址