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
推荐题目
– Which of the two coats will you take? – I will take ________. One is for my brother and the other is for myself.
#55816
A
either
B
all
C
both
D
neither
―Who is making so much noise in the garden? ―___________ the children.
#55867
A
It is
B
They are
C
That is
D
There are
I don’t think possible for us to learn a foreign language well without hard work.
#55731
A
them
B
this
C
it
D
that