China needs to strike a balance between maintaining a ______ fast and stable development and economic structural adjustment.
The old man was so angry and spoke so fast that none of his children understood ____ he said meant.
Listen to the two girls by the window. What language _____?
.Mary takes great ____ in learning pop music.
The computer system ____ suddenly while he was searching for information on the Internet.
Many students joined in the ____ race in the sports meeting to be held next week.