Ⅰ、1、are watching
2、loves，is exercising
3、likes，reads
4、is using，talks
5、is making
6、is doing，helps
7、are having are listening
Ⅱ、2 - D 3 - C 4 - A
1、doing， is swimming
2、doing， are dancing at the party
3、What is Jason doing ? He is playing the guitar.
4、What are Bob and Tom doing? They're playing chess.
Ⅲ、1、B 2、D 3、A 4、C
2、loves，is exercising
3、likes，reads
4、is using，talks
5、is making
6、is doing，helps
7、are having are listening
Ⅱ、2 - D 3 - C 4 - A
1、doing， is swimming
2、doing， are dancing at the party
3、What is Jason doing ? He is playing the guitar.
4、What are Bob and Tom doing? They're playing chess.
Ⅲ、1、B 2、D 3、A 4、C