--It’s clever _____ you to help me work out this difficult maths problem. Thanks.--- You are welcome. Now it’s easier ______ you to understand it. 
#47375
A
of; of
B
of; for
C
for; of
D
for; for
推荐题目
.Look at the hamburger. There’s some chicken ________ two cakes.
#50865
A
after
B
inside
C
opposite
D
between
Can I borrow some books _______you?
#48242
A
to
B
from
C
For
D
of
 _______ the novel, the hero disappeared again.
#51375
A
At the beginning of
B
At the end of
C
At the top of
D
At the bottom of