问题
What’s the matter with you and your friend—-She looks very busy. I want to help her, but I don’t know _____.
A:write it down
B:look up it
C:write down it
D:look it up;
B:look up it
C:write down it
D:look it up;
正确答案是：
同类题型
Small _____ it is, the pen is a most useful tool.
___________ your car unlocked outside means___________ trouble.
下列各组词语中，加点的字音和字形全部正确的一项是（ ）（3分）
It is ________ that he has been addicted tothe drugs and has difficulty quitting it
The coat made of this kind of cloth _____ well. I think it is worthy _______.