—What’s your favorite ________? —It’s science.

--Why do you get up so early in the morning?---I make it a ______ to get up before 7am to read English.

I have _________ in the morning.

—Oh, my God! We have missed the last bus. What shall we do?—I’m afraid we have no ______ but to take a taxi.

Paper-making is ___________ of ancient (古代的 )China.