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
—Would you like to go to the cinema with me tonight?—   . 
#1062
A
No, I won’t be free
B
Thanks a lot
C
I’d love to, but I’m not free
D
I’m sorry to hear that
如果你丢了一个笔记本,你要写一个寻物启事,如何写标题?
#21820
A
Found: Notebook
B
Lost: Notebook
C
Is this My Notebook?
D
This Is My Notebook!