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

A. wild

B. domestic

C. endangered

D. rare

Câu 2: We all regard pollution as a.......... matter to human beings.

A. solemn 

B. great

C. serious 

D. huge

Câu 3: He formerly worked as a machinist_______ in Boeing's Everett assembly plant.

A. appriciate

B. apprentice

C. appraise

D. approach

Câu 4: We kept in _______for a while after college.

A. touch

B. pay

C. well

D. chose

Câu 5: The_______ of living here, of course, is that it is expensive.

A. glorious

B. athletic

C. strategy

D. downside

Câu 6: She finally achieved her_______ of visiting the USA.

A. target

B. objective

C. desires

D. ambition