Many of the big world sports events are _______by wealthy big companies, who hope to advertise their companies or their products.
According to ______ survey,there're more and more young people who go for a walk at ______ dusk instead of sitting in front of the computer.
It was 5 o’clock __________ the visitors finally arrived at Pudong International Airport.
You made the same mistake second time, dropping “n” in the word “running”.
—I’m afraid I can’t finish the book within this week.—__________.
The hunter insisted that he _____ a tiger and that a searching team ______ to hunt for it.