问题

When we are very sad,we should think of .

A:for, to learn
B:for, learning
C:of , to learn
D:of , learning.;

正确答案是：

同类题型

How foolish I was!— ________ you have realized that，stop blaming yourself．

What ______the number of the students in your school—About four thousand and seven hundred. A number of them ______ from the countryside.

Fred entered without knocking and, very out of breath, sank _____ a chair[ ]

4–lt was really an exciting match yesterday But you missed it -____1 got there ten minutes before it ended

！It’s dangerous to skate over there.