( )data is useful for large and complicated projects involving many people.
举一反三
- There are many people. These people want to see the film.=There are many people ____ see the film.
- How many people are going skating A: Five people. B: Six people. C: Seven people.
- How many people died in the accident（） A: 3 people. B: 5 people. C: 6 people. D: 7 people.
- Many people prefer large cars, ____ large cars are safer than small ones.
- He knows________ many people in this city. A: good B: a good C: large D: a large