My dad bought me a new MP4 player, but I don’t know 　　　.

I agree ________ is good to eat lots of fruit and vegetables.

Don’t be angry with your kid when he makes a mistake again, will you? —No. I won’t. I know that ______of us are perfect after all.

Mary could swim when she was six years old.— .

Do you like the hero in the book _________ fights for freedom all the time?—Yes, of course. I think he is great.