1. My father work in london. => works

2. Tom don' t play the piano. => doesn't

3. I plays football every weekend. => play

4. Does the starts work at 9 o'clock every morning? => Do

5. my parents doén't watch TV in the afternoon. => don't

The present simple(thì hiện tại đơn)

1.work=works

2.don't=doesn't 

3.plays=play 

4.starts=start

5.doesn't=don't