The light in his room is still on. Do you know _________?— To prepare for the coming exam, I think.

These books are _____. _____ are in _____ bags.

When you have difficulty, do remember to _________. Two heads are better than one.

Which club would you like to join, art club or basketball?— _______ is OK. I’m good at them.

I really ________ Tina, we haven’t seen each other for about three years.