It’s ___________ black．It’s ________ black ruler．

Did you find the small village yesterday? — Yes, without any difficulty, for it has ______ changed over years.

Where do you thinkhethe computer?—Sorry, I have no idea.

Sandy, _______ apple on the table is for you. Remember to eat it.—Thanks, I will. _____ apple a day keeps the doctor away.

This math problem is ________difficult for such a boy ______work out.[ ]