Câu hỏi: This_______disease caused a lot of complications during the treatment procedure.

A. situation

B. difficult

C. life-threatening

D. weak

Câu 1: In military, A.I. robots are used to _______ dangerous environments containing explosives or contaminated by nuclear weapons.

A. change

B. explore

C. fix

D. borrow

Câu 2: We kept in _______for a while after college.

A. touch

B. pay

C. well

D. chose

Câu 3: You need to_______ the numbers properly in a column.

A. align

B. check

C. draw

D. write

Câu 4: The factory was fined for______ chemicals into the river.

A. dumping

B. discharging

C. producing

D. exposing

Câu 5: The waste water from bath, showers, sinks and_______, and rainwater can be collected in a tank.

A. linguistic

B. official

C. dishwasher

D. operate

Câu 6: The society was set up to______ endangered species from extinction.

A. prevent

B. distinguish

C. preserve

D. survive