In his lecture, the professor referred to the belief ________ the elderly are wise, ________ is particularly dominant(支配的) in Chinese culture.
You'd better not phone me between two and six o'clock this afternoon; I __________ a speech then.
By the middle of the 21st century, the vast majority of the world's population __________ in cities rather than in the country.
-I will call on you at 9:00 tomorrow morning. -Sorry, I __________ the flight to Sanya then.
My wife __________ the night shift when my plane __________. That's why no one is to meet me at the airport today.
By the time you arrive in New York tomorrow, I __________ in the USA for 3 days.