—Excuse me,may I use your dictionary? I ________ mine behind.
—Sure. Here you are.
leave
have left
will leave
was leaving
–I didn’t know ______ -Neither did I.
–Hurry, Mike! The bus is coming. --Wait a minute,please! Let me see if there’s ______ left.
--Let’s go shopping, _____? --Ok, let’s go.
-Must I send my uncle an e-mail now, Dad? -No, you ____.You____ do that after you finish your homework.
-_____important it is to study English well! Do you think so ? -Yes, I agree with you.