For a greener planet，China is working hard!

carry，main，pollute，twenty-one，until

（1）Since the early

twenty-first

twenty-first

century，global green leaf area has increased by 5%.
（2）As the survey shows，the green leaf area was

mainly

mainly

located in China and India.
（3）China has spent a lot of time

carrying

carrying

out programs to enlarge the area of the forests.
（4）The programs were developed to reduce soil erosion，air

pollution

pollution

and climate change.
（5）China won't stop working hard

until

until

there are few losses in global greenness in the future.