Put the verbs in brackets into the correct tense.
1. A: What time will you be home tonight?
B: I'm not sure. If I ...have to... (have to) work late, I ...will call... (call) you.
2. A: I felt very tired at work today.
B: Well, if you .......................... (not/watch) the late film, you ................. (not/feel) so tired.
3. A: Should I buy that car?
B: Why not? If I ....................... (have) the money, I ........................... (buy) it myself.
4. A: If you ................................. (pass) a chemist's .......................... (you/get) me some cough medicine?
B: Yes, certainly.
5. A: My sister seems very upset at the moment.
B: Were I you, I .............................. (talk) to her about it.
6. A: Unless you ............................. (hurry), you ........................ (be) late again.
B: No, I won't. There's plenty of time.
7. A: Oh! I forgot to ask Sarah over for dinner.
B: If I ......................... (speak) to her today, I ............................. (ask) her for you.