Cars do cause people some health problems, in fact far more serious _____ than computers do. 
#15117
A
one
B
it
C
ones
D
those
推荐题目
The old couple has two children, __________ able to come to see them when they feel lonely, however.
#15748
A
both of them are
B
neither of them are
C
none of whom are
D
neither of whom
They will see ______off.
#16869
A
I,you and Tom
B
you,Tom and
C
Tom ,you and me
D
you,Tom and me