----- Are you still mad at Lana?-----No, it’s water under the bridge. I’ve forgotten it.
He must _____ his sister with her math.
.Lucy and Lilystudents,and theymath.
---I’m going for a summer camp in Beijing next month. --- ________.
--Hey, Tina. _____are you going for your vacation? --- Hmmm. I think I’m going to shanghai.
---Is Sam anstudent? ---Yes, he is _______.