19.The story was so funny that we ___________.
A. couldn't help laugh B. can't but laugh
C. couldn't help laughing D. couldn't help but to laugh
18.His parents insist on ____________ to college.
A. he should go B. he go C. his going D. him to go
17.Keep on _________ and you will succeed.
A. a try B. try C. triing D. trying
16.We should often practise _________ English with each other.
A. to speak B. spoke C. speak D. speaking
15. My brother keeps _________ me with my work.
A. to help B. help C. helping D. helped
14. Jack said that he wouldn't mind ___________ for us.
A. to wait B. wait C. waiting D. waited
13. The classroom wants __________.
A. clean B. cleaned C .to clean D. cleaning
12. Have you forgotten ___________$1000 from me last month? Will you please remember _________ it tomorrow?
A. borrowing; to bring B. to borrow; bring
C. borrowed; bringing D. borrowing ; bringing
11.It's no good ________ over split milk.
A. to cry B. crying C. cried D. cry
10.It took the workmen only two hours to finish ________ my car.
A. repairing B. repair C. to repair D. repaired