Тут надо закончить вторую часть предложения должны быть написаны в 2 временах в past perfect и past perfect continious. что бы одно предложение было написано и в том и в другом времени. 1.our teacher was angry because 2.she had a terrible headache because 3.the children came back home very tired because 4.she was late because 5.they were wet because

1. ... the students hadn't been listening to her explanations.
2. because she had been working for eight hours at the computer without a break.
3. because they had been waiting for a bus and they had to go on foot .
4. because she had been doing her make up very long.
5 . because it had been raining heavily.