The following exercises are copied from a Primary English book .
1. Did you see any car in the street?
2. Does he have any friends in Japan?
3 .Do you have any brother?
4. Does Tom have any pencils?
5. There aren't any children in the room.
For sentence 1, is it correct to say 'Did you see any cars in the street? ' instead of 'any car'?
For sentence 2, I think it should be 'Do you have any brothers?
For sentence 5, is it correct to say ' there isn't any child in the room.'?
Thanks for your help.