语法总结
过去完成时
had just pulled out、had told、had been 表示在后续叙述动作前已经发生。
相似句：
- He had just left when I arrived.
- The train had gone before we reached the station.
either ... or ...
I either nodded or made strange noises 表示两种回答方式二选一。
相似句：
- You can either stay or leave.
- She either walks or takes a bus.