John is the only one of the students in the class who never _____ a mistake even when it is pointed out to him.
—I’m sorry. I shouldn’t have been rude to you. —You _______ your temper but that’s all right.
John has tried many ways to solve the physics problems, but _______ works.
When the teacher speaks, we have to keep quiet, ?
Man is bornyet everywhere he ischains.
---Do you have trouble finishing the work? ---The work is not so difficult as you think.We have finished it already.