---The sick kids look unhappy. What shall we do?
--- Let's do something to ___________.
| A．cheer them up | B．cheer him up |
| C．take care of him | D．look them after |
Public signs keep ________ from danger.
| A．us safe | B．ourselves safety |
| C．us safety | D．ourselves safe |
If you try to do many things______, you’ll become tired out.
| A．at a time | B．all the time |
| C．some times | D．at times |
Would you like to tell us something about what a doctor’s life ______?
| A．like | B．is like |
| C．likes | D．look like |
The old man was _______angry _____ a word. He didn’t say anything.
| A．enough ; to say | B．so ; saying |
| C．very; to say | D．too ; to say |
It is such that you muston it.
| A．hard work; work hard | B．a hard work; hard work |
| C．work hardly; work hard | D．hard work; work hardly |