- 试题详情及答案解析
- Alex and Chris, volunteers from Australia, are said _____ our school as they have finished their teaching mission.
| A．having left | B．leaving |
| C．to leave | D．to have left |
- 答案：D
- 试题分析：考查时态与语法。be said to do：据说..。句意：从澳大利亚来的两个志愿者亚历克斯和克里斯据说当他们已经完成他们的教学任务时就已经离开了。leave 发生在finish之后故用完成时态。故选D
考点：考查时态与语法