一、选in in my bedroom 在我的卧室
二、What are they doing?他们在做什么?
你可以回答：They are playing basketball.他们在打篮球
They are watching TV.他们再看电视如果她们在下棋怎么说？要英语的他们要走路去上学？她们在下棋 They are playing chess.他们要走路去上学.They go to school on foot.