Today _______ have TV sets in big cities.
举一反三
- People have to ______ noise pollution in big cities.
- Years ago, TV sets had pictures only in ____________. People had ___________channels to choose from. They had to _____________ on the TV to change the channel. Today, however, TV sets show pictures in __________.People have hundreds of channels to watch. TVs come with ___________ , so people can change channels from across the room.
- Many Americans want to have their homes outside the cities and their jobs in the cities.
- I have two TV sets，but _____ of them is in good condition.
- How many cities<br/>will have air quality monitoring systems installed by the end of this<br/>year?() A: 42 cities. B: 220 cities. C: 150 cities. D: 262 cities.