Today, we’ll discuss a number of cases _______ parents have much difficulty in communicating with their children.

Helen is a mere washer woman, yetshe’s now buying a big house.Carol: Yes. Because she’s always saved________.

ropean market has long been favoringa number of African and Caribbean countries, ________ former colonies ofBritain or France

Could you go and ________ the new books for me

With the development of thecentral and western China，more and more modemcities have ——in what wasa wasteland ten years ago