句型转换 1.I‘ve been swimming （sincetwo hours age）改为（）( ) ( ) you been swimming 2.he came

题目

句型转换 1.I‘ve been swimming （sincetwo hours age）改为（）( ) ( ) you been swimming 2.he came
句型转换2为.he came to China five years age改为he （）（）（）China for five years

答案

（How）(long) (have) you been swimming?
你游泳游了多长时间?
He （has）（been）（in）China for five years.
他来中国已经五年了.