中国大学MOOC: Most scientists in the world today firmly believe the effective means to stop global warming is to reduce emissions of air _____.
举一反三
- Scientists were warning the world about global warming 60 years ago. If people had acted quickly back then, they ………………………………….(stop) today’s disasters. But they did nothing.
- 中国大学MOOC: Global warming is an (3) ________ serious problem facing the world today.
- Scientists were warning the world about global warming 60 years ago. If people had acted qu
- scientists identified water shortage and global warming as ______ problems. A: the two most worrying B: the two most worried C: the most two being worried D: the most two being worrying
- According to some scientists, global warming the survival of the whole human race.