You had better _____ talk in class without permission.
Look, someone left a book.—Oh, yeah … This book ________be Kitty’s. Only she likes to read this kind of books.
Do you know when hetomorrow?— Don’t worry. I think as soon as he, he will give you a call.
My brother came back home while I homework.
Can you go shopping with me tomorrow? —Sorry. I have to _____ my sick mother at home..