A.They try to reduce the water intake.
B.They get water from the irrigation system.
C.They get water through metabolic process.
D.They don't really need water for a long time.

A.cut up
B.put up
C.continue
D.use up

A.participate
B.leave
C.take part
D.enjoy

A.ignore
B.find
C.share
D.arrive at

A.come in
B.run short
C.run away
D.remain intact

A.mess up
B.clear away
C.tidy
D.clear off

A.go off
B.go in
C.stop burning
D.continue burning

A.go off
B.go in
C.stop burning
D.continue burning

A.controversial
B.trivial
C.essential
D.optional

A.come in
B.live in
C.like
D.prefer