What was Jimmy going to do?—He was going to put ______ some signs ______ old books.

问题描述:

What was Jimmy going to do?—He was going to put ______ some signs ______ old books.

What was Jimmy going to do?          
—He was going to put ______ some signs ______ old books.          [     ]A.up; asking for          
B.on; to ask to          
C.up; asking to            
D.down; asking to
A.up; asking for          
B.on; to ask to          
C.up; asking to            
D.down; asking to

A
put up the signs 竖立标记,挂招牌
ask for sth 寻求某物,要某物
asking for old books这里的asking是现在分词做后置定语修饰前面的signs
句子意思是,吉米打算竖立一些招牌寻求旧书.