What do you think of your parents—They always let me do ________ I think I should do.

What do you feel about the concert held by Song Zuying in Bird’s Nest?— Sorry, I have no ideaI ______ it because I happened to be on the plane that night.[ ]

________ reducing pullution, man should pay more attention to conserving energy

_______ advice my teacher gave me ! It has helped me a lot.

Anna is already ______girl, but she is lazy. She wants to get her clothes ______ again.