It rained yesterday,so I stayed at home 【用because改写】 My parents will go to America in two weeks【改用in two weeks提问】 people use thermoses for keeping water warm【改用被动语态】 Smith thinks he can do it well【改为过去式】 Basketball was invented by a Canadian doctor 【改用主动语态】 He divided the players into two teams of eleven【改为同义句】He might know anyone at the party【改为表示否定推测的句子】