A.will finish
B.finished
C.am finishing
D.have finished
A.faces
B.facing
C.faced
D.to face
A.couldn"t I
B.could you
C.don"t I
D.will you
A.need
B.are needed
C.is needed
D.needs
A.try to
B.to try to
C.trying to
D.tried to
A.needn"t have written
B.needn"t write
C.didn"t need write
D.didn"t need to write
A.do it
B.to finishing the matter
C.in charge of the matter
D.taking care the matter
A.do it
B.to finishing the matter
C.in charge of the matter
D.taking care the matter
A.suppose
B.for fear that
C.no matter how
D.the moment
A.there is no life there now
B.there is a large amount of water at the poles
C.the Mars may be able to support life in the future
D.conditions may have been similar to those on the Earth
A.to take
B.took
C.taking
D.have taken
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