4 Complete the sentences opening the brackets. 1 When I opened the door, the lesson (to begin) ... and the
teacher (to explain) ... something to the class.
2 1 (to clean) ... the carpet, when the dog (to come) ... and (to
shake) ... himself.
3 When the bell rang, the children (to run) ... into the classroom
and (to take) ... their seats.
4 We (to have)... a good long holiday after we (to do) ... all the
work.
5 Before we (to take) ... the boy to the theatre, he (never to see)
a play.
6 By the time we (to arrive) ..., the party (to finish)
7 When I (to get) ... to the playground my friend ... already (to
leave) ... so l (not to see) ... him that day.
8 What you (to do) ..., when I (to call) ... you? I (to cook)...
хелп
1 began / explained
2 was cleaning / came / shared
3 ran / take
4 had / did
5 took / had never seen
6 arrived / was finish
7 get / left / didn't see
8 doing / called / was cooking