All I have learned about the exam____ that three students faileD. A. is B. are C. will be D. have been
—May I ask you a question after class, Mr. Lee? — ______________, but not during my lunch break.
The shop will be closed for repairs ________ further notice.
She must be looking forward as much to his return as he himself is to _______ her.
You can’t avoid _____ your job tomorrow ______ you work hard today.
After two years’ research, we now have a _______ better understanding of the disease.