Câu hỏi: 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 1: We kept in _______for a while after college.

A. touch

B. pay

C. well

D. chose

Câu 2: Teachers complain that more of their time is taken up with _______than with teaching.

A. protection

B. administration

C. architecture

D. article

Câu 3: Some______ animals become tame if they get used to people.

A. wild

B. domestic

C. endangered

D. rare

Câu 4: The problem of_______ in big cities, which stems from uncontrolled migration from rural areas.

A. overpopulation

B. decrease

C. increase

D. growth

Câu 5: Intelligent ___________ are widely used in many fields such as heavy industries, hospital medicine business, and the military.

A. machines

B. service

C. advisement

D. computers

Câu 6: Installing is firewall is one method of trying to protect against_______.

A. hackers

B. thiefs

C. robbers

D. crooks