Of the two brothers, Bill is ______ youngerone, and he is a quiet boy, ______ that most adults like very much.

.Work on Rome’s Palatine Hill has turned up a series of discoveries, including____ might be the underground cave .

s the small house less than 20 square meters,under ______Roof lives a large family of three generations.

If he _______ tomorrow, he would find Mr Wang in the office.

“You are too selfish. It’s high time you 　　　　 that you are not the most important person in the world.” Peter said to his boss angrily.