【正文】 guess you were in a hurry this morning. You ________ your sweater inside out.— Oh my god, I’ll have it changed immediately.A．wore B．are wearing C．were wearing D．have worn8．Ladies and gentlemen, please remain in your seats, fasten your seat belt and bring your seat back. The plane________.A．takes off B．is taking off C．has taken off D．took off9．Listen! The birds ________ happily in the tree outside the window.A．sing B．sang C．are singing D．were singing10．—What’s the terrible noise?—The students ________ for a party.A．have prepared B．are preparing C．prepare D．will prepare11．Betty can’t join us in the game. She ________ the classroom.A．has cleaned B．was cleaning C．has cleaned D．is cleaning12．—Yesterday I received a letter from .—You did? I hear he________for America next year.A．has left B．leaves C．left D．is leaving13．— Hurry up, Mary. The movie has already been on for ten minutes. —Wait a moment. I ________ some snacks in a shop.A．buy B．bought C．am buying D．have bought14．—Hurry up!—One moment. I ________ my s.A．reading B．am reading C．was reading D．have read15．—I _____to Beijing tomorrow. —Have a good trip!A．flies B．fly C．am flying D．flew16．—Mom, it’s so late. Why don’t you go to bed?—Your brother hasn’t e back yet. I ________ for him.A．wait B．am waiting C．has waited D．waited17．—Where is Frank?—He _________ to music in his room.A．listens B．is listening C．listened D．was listening18．— Hello. May I speak to Laura, please?—Sorry, she39。t find Mike in the classroom. Where is he?—Oh, he ________ in the library.A．was studying B．studied C．is studying D．studies21．—I can’t find David. Where is he?— He________ for tomorrow’s petition at home.A．prepares B．is preparing C．has prepared D．prepared22．— Hi, Tom. I can’t find David anywhere. Do you know where he is?—Oh, he ________ for tomorrow’s exam at home.A．prepares B．is preparing C．has prepared D．prepared23．I can’t hear you. I ______ to an English speech.A．am listening B．listen C．was listening24．—Look out! Something ________ down from the tree.—Dear me! It’s too dangerous.A．falls B．fell C．is falling D．was falling25．—I _______ a book report now. Can I talk to you later?—No problem.A．write B．wrote C．am writing D．was writing26．Don’t make any noise, Jim! Your little sister ________ now.A．sleeps B．slept C．is sleeping D．will sleep27．— Tina, the TV show has already been on. Come and watch together. — Wait a moment. I ________ coffee in the kitchen.A．am making B．have made C．make D．made28．— Tom, what’s your sister doing?— She ________ her homework in the study.A．does B．will do C．did D．is doing29．I must leave now. My brother ________ for me outside.A．waits B．waited C．is waiting D．was waiting30．—Where’s Nick?—He ________ classes at school.A．had B．will have C．is having D．was having31．—Mary, may I use your ipad for an hour?—Sorry. I ________ on it.A．work B．am working C．have worked D．worked32．Sorry, you can’t take