摘要：--Why did you plant so many trees? -- the environment. A improve B to improve C .improved D. improving 13--I’m trying to lose weight, so I just have one meal a day, and nothing else. --Do you honestly feel that’s ? A necessary B important C .difficult D. easy
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—Why did you plant so many trees?
— ______ the environment.
- A.Improve
- B.To Improve
- C.Improved
- D.Improving
—Why did you plant so many trees?
— ______ the environment.
A. Improve B. To Improve C. Improved D. Improving
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—Why did you plant so many trees?
— ______ the environment.
| A．Improve |
| B．To Improve |
| C．Improved |
| D．Improving |