In his lecture, the professor referred to the belief, in contrast to all other countries, ______the elderly are wise, ______is particularly dominant in the Chinese culture．

There ____ some meat in the fridge, so you don’t need to buy any.

______is the Changjiang river in China, do you know?—Yes, it’s about 6,380 kilometers long.

There are four ________ students in our school.

Let’s go __________ to play.—Sorry. I don’t want to go _____________.