完成句子。
1. ______________, (为了通过考试) he stayed up late preparing for it. (order)
2. It was the second time that ______________. (他给我打电话) (telephone)
3. Finally we ______________ (完成这项任务), although it took a long time. (get)
4. It was a burning cigarette end _____________ (引起火灾) in the city. (cause)
5. People who listen to Hawking's lectures sometimes ______________.(发现很难理解他) (find)
1. In order to pass the exam
2. he had telephoned me
3. got the task finished
4. that caused the fire
5. find it difficult to understand him