1. I asked Nick... he was going 
c) where 
2. I wanted to know... he was going to stay there 
d)how long 
3. He wondered.... would see me. 
b) who 
4. They asked them.... time the train started
b) what 
5. Mary asked Tom... he would do the next day 
b) what 
6. l asked Nick... he was going to come back 
b) when 
7. I wanted to know.... kind of book Bob had brought 
a) what 
8. Ann wondered.... I hadn't come the day before 
a) why 
9. Nick asked me.... I had seen such trees. 
a) where (оба вопросительных слова подходят по смыслу)
c) when
10. Boris wanted to know.... he could get to the railway station 
b) how 
11. Mother asked Nick.... had brought this parcel 
d) who 
12. Boris wanted to know... he could get to the railway station 
c) how 
13. He wondered... we were going to stay there.
 d) how long
14. I asked them... they would do the next day 
a) what
15. Mary asked Tom.... he was going  
b) where