2019年mpa考试英语真题——介词和介词短语1728

{01}There are a great many books in the store,       some are useful to us.  
A.of them      
B.in which        
C.of which    
D.in them
解析：
本题选C。

{02}You know, Bob is a little slow______understanding. So I have to be patient ______him.
A.in; with
B.on; with
C.in; to
D.at; for
解析：
本题选D。