题目内容

Threemilliontonsofcoal______everyyearinthecity.

A. isexploited
B. areexploited
C. hadexploited
D. haveexploited

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Whatthechildreninthemountainvillageneed________goodbooks.

A. is
B. are
C. have
D. has

YouandI_____twinsisters.

A. were
B. are
C. is
D. am

Seventy-fivepercentoftheearth’ssurface______withwater.

A. iscovered
B. iscovering
C. werecovered
D. arecovered

What is the relationship between Teresa and Diane?

A. Sisters.
B. Mother and daughter.
C. Roommates.
D. Teacher and student.