单项选择题
After three hours of heated debate, the（）bill was passed by a narrow majority .
A.virtual B.universal C.controversial D.substantial
单项选择题 How can you best（）in your students the speech habits of the English language?
单项选择题 You must take the（）steps by yourself; after you have begun, I will help you.
单项选择题 This is the first draft of the book. Please feel perfectly free to（）on it.
