All of us find ________ necessary to take exercise every day.
#55752
A
this
B
that.
C
them.
D
it
推荐题目
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
-Does it often rain in Jinan? -No, was little rain in Jinan last winter.
#55748
A
it
B
this
C
that
D
there
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