English Grammar in Use Fifth Edition

UNIT 50
50.1
2 c
3 a
4 b
5 b
6 c
7 b
8 a
50.2
2  How far is it to the airport?
3  I wonder how old Tom is. 
4  How long have they been married? 
5  Do you know how long they have 
been married?
6  Could you tell me where the 
sta
tion is?
7  I don’t know whether anyone was 
injured in the accident.
8  Do you know what time you will 
arrive tomorrow?
50.3
2  She asked me how long I’d
been in London.  
  or    
… how long I had been … 
3  They asked me if/whether I’d been 
to London before.  
  or    
… I had been … 
4  She asked me if/whether I liked 
London.
5  He asked me where I was staying.
6  She asked me how long I was going 
to stay.
7  She asked me if/whether I thought 
London was expensive.  
  or    
… is expensive. 
8  They asked me why I’d come to 
London.  
  or    
… why I had come …  
or    
… why I came …