He can’t ___________ the difference between right and wrong.
| A．say | B．speak | C．answer | D．tell |
—What about ________ a rest？
—OK！Let’s go for a walk．
A．to take
B．take
C．taking
Thanks a lot ________ your help．
A．to
B．with
C．for
A ________ girl named Dong Xinyi looked after her disabled father．
A．three-year-old
B．three-years-old
C．three years old
It is interesting for us ________ this game．
| A．play |
| B．plays |
| C．to play |
| D．playing |
Sun Yang ________ every day and he swims very well．
| A．exercise |
| B．exercises |
| C．do exercise |
| D．does exercises |