改写英语句子.The boy walk about in order to keep warm .（改为同义句）There used to be low and dirty houses.(改为反义疑问句）Parents should allow teenagers to choose their own clothes .（改为含情态动词的被动语态）I don not know which mobil phone I should choose.（改为简单句）In 1519 a traveler went to American from Europe .He discovered the tomato .（合并为含定语从句的复合句）I have been to * _____ _____ _____ on the left.（同上）保护环境是我们每个人的责任.It is _____ _____ ____ _____ the environment.今天我离开家的时候卫生间的灯亮

改写英语句子.
The boy walk about in order to keep warm .（改为同义句）
There used to be low and dirty houses.(改为反义疑问句）
Parents should allow teenagers to choose their own clothes .（改为含情态动词的被动语态）
I don not know which mobil phone I should choose.（改为简单句）
In 1519 a traveler went to American from Europe .He discovered the tomato .（合并为含定语从句的复合句）
I have been to * _____ _____ _____ on the left.（同上）
保护环境是我们每个人的责任.It is _____ _____ ____ _____ the environment.
今天我离开家的时候卫生间的灯亮着.Tihs morning I left home ____ ____ ____ ____ ____.