问题
填空题
跟据所给单词完成句子
1. She _____ _____(forget) to bring her homework to school before the teacher called her parents.
2. When we got to the airport, the plane _____ _____(left).
3. I _____ _____(live) in Beijing for ten years before I came here.
4. Hello, I _____ _____(not know) you ______(be) in London, How long have you been there?
答案
1. had forgotten 2. had left 3. had lived 4. didn't know, were