The boy_______on the ground_______that he_______the book on the table.
He is only too ready to help others, seldom, _____ , refusing them when they turn to him.
---If you like,I can give you a ride home. ---That’s a very kind _____ .
_____ going to the program “If you are the one”, he was rather concerned about being turned down in public.
---I came all the way to inform you of the time and place of the meeting. ---You could have _____ yourself the trouble.
The fact has worried many scientists _____ the earth is becoming warmer and warmer these years.