16. I tried _________ the bus, but I missed it.

A. catching

B. to catch

C. catch

D. catch up

17. I'm sorry I haven't got any money _______ you. Why don't you try _________ Peter?

A. to lend / to ask

B. lending / asking

C. to lend / asking

D. lending / to ask

18. After _________ asleep, I saw a strange person at the foot of the bed.

A. fall

B. falling

C. fell

D. fallen

19. After all this time, John should take the bull by the horns and ask Mary _________ him.

A. to marry

B. marry

C. marrying

D. married

20. He told me _________ early.

A. to try to come

B. to try coming

C. try to come

D. try coming