19.Mrs. Wesley. “Who will help me put away the garbage? Ron?”
Ron. “_______”
A. Oh, no. Not for me. B. I’m not sure about it.
C. Wait a minute. D. Sure. I won’t do it.

18.I’d reminded him at least three times _______ to the meeting on time, but it turned out to be useless.
A. he should come B. to come C. of having come D. about the coming

17.We have organized food and water _______ in African countries.
A. relief B. service C. distribution D. supply

16.Tom. “Mommy, can I go out with my friends at 9 this evening?”
Mrs. Sterne. “_______”
A. I’d rather not. B. Yes, with pleasure.
C. Please don’t. D. Sure. Have a go.

15.Philip. “Which would you like to eat, beef or chicken?”
Jennifer. “_______”
A. Beef seems fine B. No way! C. It’s on me? D. Either way.

14.What time are you _______ duty? Let’s have a coffee after that.
A. over B. on C. off D. out of

13.Will it make any _______ to them if we deliver their equipment tomorrow?
A. displeasure B. alteration C. difference D. conflict

12.How boring the lecture was! I _______ just in the first half of it.
A. dropped off B. fell out C. called off D. came out

11.We rang the doorbell again _______ they hadn’t heard it the first time.
A. because B. although C. for fear that D. in case

10.It is obligatory _______ the instructions on the label strictly.
A. when using this chemical they must follow
B. this chemical is used by following
C. the use of this chemical follow
D. for this chemical to follow