Physical Education in schools can teach us endurance — something we all need ______ life becomes tough.
—The experiment had failed. —I suggest you _________ again.
—Tom was late for the meeting. —_________ As far as I know, he set out very early.
It is a _________ in China to have some tea or other drinks before the meal is served.
The two birds _________ each other in shape and color. In otherwords, they _________ each other in shape and color.
Once upon a time there was a poor old fisherman, in front of whose house _________.