Sam, do you know if Aliceto my party next week?—Ithink she will come if she free

_______, I have never seen anyone who’s as capable as John.

A little boy wrote____ “U” and___ “n” on the wall.

Do you like playing computer games?—No, I don’t. But Nick ______.

What does your grandma often do after supper?–She ___ for a walk.