Low-carbon lifestyle is of great benefit to improve the world environment.____ can be enjoyed from it until you have a deep under, standing of it,however.
---The air would certainly be cleaner if there were fewer cars running in the city. ---_______.
_________, I always feel I want a few more days.
---How do you find my composition, Mr John? ---Good, ___too many spelling mistakes. You can’t imagine what great difficulty I had ___them.
He is only too ready to help others, seldom, _____, refusing them when they turn to him.
It is in their ability to speak ______ humans ______ from animals.