The law passed _____ the retirement of the public

______ of the city ______ covered with parks and gardens.—Wow， it’s really a green city.

When you don’t know a word, you can _________ in the dictionary

How could you be so rude as towalk in here in the middle of my class—_____________

It is said that this project will take ________ two to three years, and cost about 200 million yuan