单选题 Medical scientists claim that the advantages of the new drug ____ the risks it brings.

单选题 Due to global warming and deforestation, more and more species are ____ to die out.

单选题 When checking in for a flight, passengers have to pay ____fees for their excess baggage.

单选题 The government will ____ an extra tax on tobacco next month in an effort to discourage people from buying it.

单选题 Mary has been ____ a grudge against her manager ever since her promotion was refused.

单选题 It is to start considering job applications at the beginning of your fourth year in college.

单选题 If the pain ____, I suggest you go to the hospital immediately to consult the doctor.

单选题 The CEO ____ the collapse of the corporation by his incompetent leadership and reckless spending.