He has three children,         are doctors.
#68700
A
and two of whom
B
two of them
C
two of whom
D
two of which
推荐题目
__seems easy to some people seems difficult to others .
#72954
A
Which
B
That
C
What
D
Whatever
These shoes look very good. I wonder __________. 
#73894
A
how much cost they are
B
how much do they cost
C
how much they cost
D
how much are they cost