Pandas are not fast. They usually walk ______.

He studies__________ at Japanese, but he can still_______speak it.

In his lecture, the professor referred to the belief ________ the elderly are wise, ________ is particularly dominant(支配的) in Chinese culture.

Mr Reed made up his mind to devote all he had to________ some schools for poor children

eceived an invitation to dinner, and with his work ________，he gladly accepted it.