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: He had a new heart valve _______.

A. added

B. supplanted

C. improved

D. implanted

Câu 3: Gavin_______ the idea of dividing the rooms in half.

A. get on with

B. pave the way

C. keep an eye on

D. come up with

Câu 4: Teachers complain that more of their time is taken up with _______than with teaching.

A. protection

B. administration

C. architecture

D. article

Câu 5: The society was set up to______ endangered species from extinction.

A. prevent

B. distinguish

C. preserve

D. survive

Câu 6: He formerly worked as a machinist_______ in Boeing's Everett assembly plant.

A. appriciate

B. apprentice

C. appraise

D. approach