I HAVE TO WORK TOMORROW EVENING, SO I CAN'T MEET YOU. A. IF I DON'...

31. I have to work tomorrow evening, so I can't meet you.

A. If I don't have to work tomorrow evening, I can meet you.

B. I can meet you if I didn't have to work tomorrow evening.

C. I could meet you tomorrow evening if I don't have to work.

D. If I don't have to work tomorrow evening, I would meet you.

32 Paul has get up early in the morning.

A. He should stay up late

B. He should set his alarm clock

C. He should drink a lot of strong coffee

D. He should watch TV until midnight

33 If I knew her telephone number, I would give her a ring.

A. I gave her a ring so I knew her telephone number

B. I gave her a ring because I knew her telephone number

C. I didn't know her telephone number, so I didn't give her a ring

D. I don't give her a ring because I don't know her telephone number