after cleaning the windows,he [ ] the floor

问题描述:

after cleaning the windows,he [ ] the floor
A;go on sweeping
B;went on sweep
C;went on to sweep
D;went onsweeping
必须有理由

C;went on to sweep .
go no to do something表示继续做另一件事(不同于前一件事)
go no doing something表示接着继续做某件事(和前一件事相同)