1, I've decided ( stop ) to stop smoking
2, I ( visit ) visited Singapore two years ago
3, Do you mind if I sit here ? I rather you ( sit ) sat over there
4, We are tired of ( work ) working for low salary
5, When he came, I ( cook ) was cooking dinner
6, ( you / do ) Have you done the homework yet ?
7, Mai is in her room. she ( play ) is playing the guitar
8, The teacher said that we should ( not make ) not make noise in class
9, Water covers ( cover ) most of the Earth's surface
10, The gate is locked (lock ) at 6.30 p.m everyday