__________ is often the case with her, my mother talked about my study for at least half an hour nonstop before she drove me to school yesterday．

h teachers are supposed ______theirstudents a test in class, even after class, ______better teaching results.

Without the ____ of my friends, how could my companyhave lived through the hard times.

Xiao Ming practises his spoken English oncethere is a chance and that is_________ it takes to live his dream to be a goodguide．

With the country’s population reaching 1.6 billion in the mid of this century, most of China’s rivers, including the Yellow River, ________