29.2-c
3-a
4-b
5-c
6-b
7-c
8-c
9-a
10-b
30.1))They usually start working at 9 o'clock.
2)Look!That man has blue hair
3)Are you studying for your exams at the moment?
4)I was late for work yesterday morning.
5)Dave has been planning his holiday since Christmas
6)Sheila had typed twenty letters so far this morning.
7)The sun had been setting in the west.
8)Lydia buyed a new car last month.
