Question 1: I’m “on the fence” about whether to go to the party or stay home.

A. decided B. certain C. undecided D. enthusiastic

Question 2: The local government decided to “abolish” the old tax system.

A. preserve B. improve C. eliminate D. establish

Question 3: It was a “fruitless” attempt to convince him to change his mind.

A. unsuccessful B. productive C. expensive D. quick

Question 4: You should “keep an eye on” your luggage while waiting at the airport.

A. look for B. watch carefully C. hide away D. carry

Question 5: The team worked “around the clock” to finish the project on time.

A. at intervals B. all day and night C. for an hour D. in the morning

Question 6: Water pollution is a “detrimental” factor to the health of aquatic life.

A. harmful B. beneficial C. insignificant D. necessary

Question 7: I can’t “make head or tail of” what he is trying to say in this email.

A. remember B. understand C. respond to D. believe

Question 8: The student’s explanation for being late was quite “implausible”.

A. reasonable B. unbelievable C. interesting D. long

Question 9: We should try to “conserve” our natural resources for future generations.

A. consume B. destroy C. protect D. ignore

Question 10: After the argument, it took them a long time to “make up”.

A. start again B. disagree C. become friends again D. leave