Scientists are working hard to make _______ possible for people to live on Mars in the future.
#55873
A
it
B
that
C
this
D
one
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—A latest English newspaper, please! —Only one copy left. Would you like to have , sir?
#55760
A
one
B
this
C
that
D
it
If you don’t know how to use the word, you should _________ in a dictionary.
#55810
A
look up it
B
look it up
C
look them up
D
look up them
---How many children have you got ? ---Two , _______ of them are studying in the university.
#55759
A
both
B
all
C
any
D
none