The most important ________ of his speech was that we should all work wholeheartedly for the people.
There were _______ shops in the city in 1982 than in 1990.
If you are not free today, come another day __________.
He can’t tell us ________, I think.
The Huang River is the second __________ river in our country.
The light in the office wasn’t ________for him to read.