---Many students don’t know how to__________stress and become worried.---I think they can ask their teachers for help.
Public signs keep ________ from danger.
If you try to do many things______, you’ll become tired out.
Would you like to tell us something about what a doctor’s life ______?
The old man was _______angry _____ a word. He didn’t say anything.
It is such that you muston it.