To live a low﹣carbon(低碳) life, we should t off the lights when we leave the room.
We should take action to protect animals in (dangerous).
Jim has never been (be) to Mount Tai in China.
Tom and Jerry have a lot in common. Their (they) favorite basketball player is James Hardern.
Would you mind giving me some advice (advice) on how to plant trees?
Henry's uncle is planning (take) a trip to Dunhuang now.