The boy ______ a piece of waste paper, and put it into the rubbish bag.

The old man, ______ abroad for twenty years, is on theway back to his motherland.

some people regard as a drawback isseen as a plus by many others

Jenny hopes that Mr Smith will suggest a good way to have her written English ________

______ we clean the classroom at once–No, you _____. You____ clean it afterschool.