I have no idea ______ it is that makes him puzzled.
A. how B. what C. why D. which
He sat at the desk, __________ a novel.
A. read B. to read C. reading D. reads
______ tourism developing, more and more people prefer to go travelling for a holiday.
A. As. B. With C. Upon D. For
.--- I was lucky the win a gold medal in the800-metre race.
--- You ____ through hard training.
A. must go B. should go C. must have gone D. should have gone.
—Excuse me, Dad, but I’m going to the club to meet my friends in the football team.
—OK. ______
A. Have fun B. Congratulations C. With pleasure D. Gook luck
The passage below “Let’s Live a Low-carbon Life(让我们低碳生活)”is about what is low-carbon living， why we should live a low-carbon life and how we can live a low-carbon life. Part of the article is written. Please finish the rest of it in about 120 words.
Low-carbon everyday living means that men and women really should try their best to cut down resource consumption (资源消耗) to decrease discharge (排放) of carbon dioxide in order to lessen pollution to atmosphere and relieve deterioration (恶化) of eco-environment.
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