1）There are three traffic （lights）：red，yellow and green.Red means “（stop）”岩搏.Green means "go" and yellow means "wait".
2)He cleans streets.He is a (cleaner).
3)―(Where) is the museum，please? ―It's next to the post office.
4)Bill is a doctor.He works in a (hospital).
5)―What's your hobby? ―I like (riding) a bike.
嘛，侍裤就这样了，这可是我一个字母一个字母打出老枣简来的TAT