1. Farmers use machines __________ (do) the farm work nowadays.

8. He came here __________ he didn't stay very long.

7. That old woman is very kind __________ she always help others.

6. You can paint you house yourself, _____________ you can ask someone else to do it.

5. I teach them English ___________ they teach me Chinese.

4. I have finished my homework, ____________ here it is.

3. Please be quick, ____________ you'll be late for school.

2. He is tired, _______________ he keeps on working.

1. It's very cold outside, ______________ please come in.

A: Excuse me. Are you waiting _________________ see the doctor?

B: Yes, I ________________.

A: May I sit _____________ you?

B: _____________.

A: What's _______________with you?

B: My right leg _____________. Sometimes I can't even walk.

A: _____________ to hear that.

B: And what's the ___________ with you?

A: I have a headache.

B: You should have enough _____________ to sleep. Maybe you are too tired.

A: May be.

B: Oh, the doctor is _____________. Let's go and see him.

A: You first, please.