1) They play tennis every day.
2) They had covered 30 km by sunset.
3) I am driving, that's why I can't talk.
4) My sisters return/are returning next week.
5) Tomorrow this time I will be flying to America.
6) Hardly had Peter crossed the road, when the accident happened.
7) I went to the cinema yesterday evening.
8) I was watching TV while he did him homework.
9) Tom's my best friends. I have known him for 3 years.
10) He said he would come at 5 o'clock.
11) I have been reading a book for a month.
12) They hoped that they would buy the tickets.
13) I had been waiting for his airplane for 2 hours when it was announced about delay.