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
---Have you found your English book?---No, I haven’t found ________, but I borrowed ________ from Jack this afternoon.
#55729
A
it; one
B
one; that
C
one; it
D
that; one
— Jim, do you have a CD? —Yes, I have _____. And I bought _____last Sunday.
#55782
A
one, it
B
it, one
C
it, that
D
one, this