I find ________ difficult to remember everything, though I’m still young.

Would you like _____bread?— No, I don’t want to eat _____.

They might just have a place ______on the writing course一why don’t you give it a try?

Mom, when can I go out to play football?—Finish your homework first, or I ________let you go out.

I think____________ necessary _____________ to take more exercise.