1. When I (arrive).....arrived..... at his house he still (sleep)..was sleeping..

2. As we (cross) ....were crossing......the street,the policeman (shout).....shouted.....at us

3.The light(go)....went.... out when we (have).....were having.......dinner

4.The children(do)...were doing......their homework when their father (come)......came...... back from the office

5. Bill(have)......was having.......breakfast when I (stop)....stopped....at his house this morning

6. While I (walk)......was walking......about the park,I (see).......saw........Mr.Jone

7.When I(go).....went.......out the sun (shine)........was shinning.........

8. Just as I (leave)........was leaving...... for home,a student(stop).......stopped....... me in the hall

9 When the students(hear)....heard....... the bell,they (get).........was getting..... up and(leave).....leaving.......