Exercise 1: Put the verbs in brackets into the correct form:

1. If I see him, I___ (give) him a gift.

2. If I had a typewriter, I___ (type) it myself.

3. If I had known that you were in hospital, I__ _(visit) you.

4. You could make better progress if you___ (attend) class regularly.

5. If I___ (know) his telephone number, I'd give it to you.

6. If you ___(arrive) ten minutes earlier, you would have got a seat.

7. If he worked more slowly, he ___(not make) so many mistakes.

8. I shouldn't drink that wine if I___ (be) you.

9. If I___ (find) a cheap room, I will stay a fortnight.

10. A lot of people ___(be) out of work if the factory closed down.

Giúp mình vs ạ