Living in the central Australian desert has its

A.down the living standard come B.the living standard came down

C.came down the living standard D.down came the living standard

A.are

B.is

C.for

A.A.

B.B.are still living

C.C.is still living

D.D.were still living

E.E.was still living

We should prevent pollution () happily.

A. living

B. for living

C. to live

D. to living

()is closely related to climate and living costs.

A.Is

B.re

C.m

Clare isn’t living in Boston now. ()

A.living the

B.leading a

C.leading

D.living

A.living at abroad

B.living abroad

C.to live abroad

D.in living abroad