1. How's Joe doing?.
a. It's because he is upset.
b. Oh, he's fine.
c. Well, first he does this ..

2. We were expecting you to be earlier.
a. Yes, you were, weren't you.
b. I'm sorry, I couldn't find the address.
c. That's because the train was late.

3. Can you show me how to do this?
a. For a start, you put this here ...
b. That's how you put this here ..
c. How to do it is like this, put it here ..

4. What's going on?
a. I can explain.
b. That's what's going on.
c. It goes on like this ...

5. So that's how to do it.
a. Can you show me again?
b. How can you show me again?
c. That's why you can show me again.

6. Joe is waiting for you downstairs.
a. What does he do?
b. Why is it that?
c. What is it?

7. Well, maybe, but I'm not sure.
a. Why is it you can never be sure?
b. What is it you can never be sure?
c. Who is it you can never be sure?

8. Do you have to leave so early?
a. Because we have to get up early tomorrow.
b. We have to get up early tomorrow
c. That's why we have to get up early tomorrow.