Put the verbs in bracket into the Past Indefininite or the Past Perfect Tense.
1)I (not yet to do) half the work when he came in.
2)She told me everything about him after he (to leave).
3)I was sorry that i ( to hurt) him.
4) We ( to undestand ) if after the teacher (to explain) it to us.
5) He already ( to learn) French efore he left for Frence.In France he soon ( to remember) all he (to learn).
6) I asked him what countries he (to visit).
7)She said that she (to pass) her examination successfully.
8) We ( to hear) that the plane (to crush) just over the airport.
9) The new bus-driver ( to have) an accident after he ( to drive) a few yards.
10) After she (to lock) and (to bolt) all the doors she (to go) to bed.
11) The students (to do) the exercises very well after the teacher (to show) how to.
12)When the plane (to land) , the sun (to set).
13)The taecher (to give) back the exercise-books after he (to correct) them.
14)When i was 20 , i (to go) to Moscow to stude English.At that time i thought i ( to know) English quite well because i (to study) it for nearly ten years.
15)Mr.Brown said he (to be) in London before