In a post office.
In a bank.
In a big store.
In a hotel.
第1题：
第2题：
第3题：
not painted in a different color
not marked with bright tapes
fixed with grab bars
very brightly lit
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第5题：
Since
For
As
With
第6题：
Tour guides are supposed to arrange dinner outside the hotel.
Tour guides’ recommendations on food are unreliable.
Tourists must have lunch in the hotels they stay in.
Tourists may taste local dishes during dinner time.
第7题：
第8题：
据报道，空气污染导致酸雨，因而对河流和湖泊造成间接影响。
据报道，空气污染了河流和湖泊，间接的原因是因为酸雨。
据报道，空气污染间接来源于河流和湖泊的污染，因为后者会导致酸雨。
第9题：
第10题：