同义句改写。
1． Why don't you go and have a look?
Why________go and________?
2． They built the building five years ago.
The building ________ ________ five years ago.
3． Chinese is spoken by the largest number of people in the world.
The largest number of people ________ ________ ________ the________.
4． The science museum is visited by more and more people.
More and more people________the science museum.
5． Many machines were made last month.
Workers________many machines a month________.
1． not, see 2． was built
3．speak Chinese on, earth
4.visit 5．made, ago