Put the verbs in brackets into the correct tense.

1. A: Did you know that Sue was coming to town?
B: No, I didn't. If ..............(know), I ............(tell) you.

2. A: Will you call me when you arrive in Seattle?
B: If I ............(not/arrive) too late, I ............(call) you.

3. A: I have been having a lot of headaches lately.
B: If I ..........(be) you, I ...........(have) my eyes checked. Maybe you need glasses.

4. A: Dad, will you drive me to school today?
B: Provided, that you .........(be) ready by 8:00, I ..........(drive) you.

5. A: Excuse me, can you please tell me where Foster's Restaurant is?
B: If you ..........(take) a left turn at the next set of lights, you ..............(see) it on your right.

6. A: I'd like a ticket for the film, please.
B: Unless you ............(be) 15 years old or order, I ...............(not/let) you into cinema.

7. A: Bob, and I are going to Venezuela next month.
B: Aren't you lucky! When you ............(go) there, ..............(not/miss) Angel Falls. It's the tallest waterfall in the word.

8. A: It's unfortunate that Michelle couldn't come to my party.
B: I know. If she ...........(finish) work earlier, she ............(come).

9. A: Mum, can we visit the zoo this afternoon?
B: So long as you ............(eat) all your lunch, we ..............(visit) the zoo.

10. A: Why are you so late?
B: I'm sorry. If there ...........(not/be) so much traffic on the road, I .............(not/be) so late.

11. A: Mum, I can't find my favourite jeans.
B: If you ............(put) them away when you took them off last night, you ..........(know) where to find them now.

12. A: I don't know where to find the information I need for my project.
B: If I ............(be) you, I ..........(go) to the library and get some books.​