【新思路】2018-2019学年外研版高一英语必修3教学课件: Module 3-3Grammar1
【新思路】2018-2019学年外研版高一英语必修3教学课件: Module 3-3Grammar1第2页

By the time the tornado ended, more than 700 people had been killed. Coghlan traveled back to Canada after he had been buried in Texas.

1. Look at these sentences and answer the questions.