轻回答下列英语问题？？？？？？？？

What do you rub off the board?

What do you put in a tape recorder?

What do you put on an OHP?

What do you keep in a file?

What do you put in a briefcase?

What do you put in a socket?

What do you use a dictionary for?

What do you use a rubber for?

What do you use a photocopier for?

What do you turn up a tape recorder?

1 use a eraser

2 a tape

3 maybe slide

4 keep secret

5 document and memorandum

6 look up English or Chinese I'm not sure

7 clean or correct sth wrong

8 copy documents

9 in the office or utility room

希望对你有帮助 但不太明白你的用意