It’s rude to laugh ______ others when they have trouble ______ something.
#21736
A
at; do
B
to; doing
C
with ; to do
D
at ;doing
推荐题目
—It’s cloudy outside. Please take an umbrella.—   
#1466
A
Yes, take it easy
B
Well, it just depends
C
OK, just in case
D
All right, you’re welcome
-- Could you do me a favor to carry the luggage?-- _______________.
#3615
A
Yes, I could
B
It’s my pleasure
C
With pleasure
D
Great
 –Would it bother you if I asked for your opinion on this report? --______.
#2223
A
No, I don’t
B
Yes, go ahead
C
Not at all
D
With pleasure