What will people die of in 100 years? If you think that is a simple question, you ______ attention to the revolution taking place in biotechnology.
The pupil is clever enough to______all these numbers correctly.
Last Sunday morning we all_____Mr Wang’s wedding,including the managers.
Mr. Smith suggested the problem worth paying attention ______ at the meeting.
Don’t hesitate ______me if you have any questions.
—The English exam is not difficult, is it? —______. Even Tom ______ to the top students failed in it.