单项选择题
A．it is B．that was C．it was D．this is
We should（）study hard during our time in the university...
单项选择题We should（）study hard during our time in the university.
A．all B．every C．some D．any
The book is a（）for students of science. A．necessary B．m...
单项选择题The book is a（）for students of science.
A．necessary B．must C．important D．useful
Not only was she hard-working,（） A．how beautiful she wa...
单项选择题Not only was she hard-working,（）
A．how beautiful she was B．was she helpful C．but she was also polite D．what a beautiful girl
