英语入门对话:51 Expressions for Description

Sentences:

It is . . .

This is something . . .

It's something that you . . .

You can (verb) it.

You can (verb) with it.

You can use it to (verb).

It is used for V + ing.

You need it for V + ing.

You need/use it when . . .

If you want/need to (verb), then you can . . .

Questions:

Is it . . . ?

What do you do with it?

What is it made of?

What is it used for?

What's the difference between A and B?