Many students in this school make __________ a rule to come to the evening classes even on Saturdays and Sundays.
_______ more and more people speak the global languages of English,Chinese, Spanish, and Arabic, other languages are rapidly disappearing.
A small plane crashed into a hillside five miles east of the city, _____all four people on board.
Since___1980s, the new technology has been used on trains in _____Europe.
— Hello, Tom . Can I help you ?—Yes. Please _______the note to him as soon as you see him.
—Excuse me , Sir. Where is the gym?—Take the lift to the tenth floor, and you ________ find it.