Annoyed by the salesman's bad manner，John chose ________of the two computers on sale and left.

—Is David a man with good manners ?—I don’t think so . As a matter of fact , he is         but polite .

-- If someone said ________ about you, would you be angry?--No, I wouldn’t.

We teachers must see to ________that every student can understand.

We had a picnic last term and it was a lot of fun, so let’s have ______ one this month.