单项选择题
A．about B．for C．with D．at
None of the food was wasted,（） A．were they B．didnt it C...
单项选择题None of the food was wasted,（）
A．were they B．didn't it C．was it D．wasn't it
There was plenty of time. She（） A．mustnt have hurried B...
单项选择题There was plenty of time. She（）
A．mustn't have hurried B．needn't have hurried C．mustn't hurry D．couldn't have hurried
Not until the early years of the 19th century（）what hea...
单项选择题Not until the early years of the 19th century（）what heat is.
A．man knew B．did man know C．man did know D．didn't man knew
