题目内容：

Mary is watching TV at home (对划线部分提问)划线部分at home
Tom is having an English lesson (对划线部分提问)划线部分Tom
学生们在干什么?What______the students________?
先向左转,然后把膝盖弯一下.________left______._________ __________your________.

优质解答

Where is Mary watching TV?
Who is having an English lesson?
What are the students doing?
Turn left first, then bend your knees.