Ответ:
1.I am studying in my bedroom at the moment, but I can join you in the park later.
2.Tom was watching TV when Jane arrived. 3.Water boils at 100C.
4.The policeman asked, «What were you doing at the time of the robbery?»
5. This athlete broke the record at the Olympic games last year.
1 A doctor is someone who helps sick people.
2.Do you know which book this is?
3 It was summer time when we decided to go on holiday to New York.
4. Tom is very reliable. That's why I like him.
5 That's the clinic where Mary works.