【正文】 ________ the classroom.A．has cleaned B．was cleaning C．has cleaned D．is cleaning10．—Peter, please be quiet. Your brother ________ on the phone.—No problem.A．records B．recorded C．was recording D．is recording11．My oil ________. I must go to the gas station before there is none left.A．has run out B．is running out C．has been run out D．is being run out12．—May I use your puter? —Sorry, I ________ on it.A．work B．worked C．have worked D．a(chǎn)m working13．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 off14．Listen! Someone __________ in the next room.A．sings B．sang C．was singing D．is singing15．—Yesterday I received a letter from .—You did? I hear he________for America next year.A．has left B．leaves C．left D．is leaving16．—Hurry up!—One moment. I ________ my s.A．reading B．a(chǎn)m reading C．was reading D．have read17．—Mary, let39。s go to the cinema. There’s a new movie called Avengers IV. —Not now, I _____________ my brother David with his math.A．help B．helped C．a(chǎn)m helping D．have helped18．—Tom, where39。t seen each other for a long time.A．Do。 expecting C．Were。 expect20．—May I speak to Mr. Brown? —I am sorry. He _______ an important meeting in his office at the moment.A．has B．had C．is having D．will have21．—Where’s Nick?—He ________ classes at school.A．had B．will have C．is having D．was having22．You’d better not go this way. The workers _________ the road. A．have repaired B．a(chǎn)re repairing C．repaired D．will repair23．— Mom, I’m busy making the bed. Can you give me a hand? — Wait a moment. I ________ the floor.A．a(chǎn)m cleaning B．will clean C．was cleaning D．have cleaned24．— Helen, how was your English petition on Monday?— I have no idea, I _________ for the result. I was told it would e out in two days.A．was waiting B．waited C．will wait D．a(chǎn)m waiting25．— 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．prepared26．I can’t hear you. I ______ to an English speech.A．a(chǎn)m listening B．listen C．was listening27．Xifeng Street is closed today because workers _______ some repairs.A．make B．made C．a(chǎn)re making D．were making28．— May I speak to Mr. Brown?— I am sorry. He ________ an important meeting in his office now.A．has B．had C．is having D．will have29．—Can Peter play games with us, Mrs. Hawking?—Wait a minute. He ________ a shower.A．is taking B．taken C．took D．was taking30．—Ethan, let’s go to play basketball, shall we?—Sorry, I can’t. I ________Yao Ming’s game. Would you mind going later?A．watch B．have watched C．a(chǎn)m watching D．was watching31．The students in our group ________ the final preparation for the match. We are sure to win.A．made B．a(chǎn)re making C．make D．will make32．My grandma ________ the old photos. There is a big smile on her face.A．enjoys B．enjoyed C．will enjoy D．is enjoying33．—Jane,where are you?—Dad,I________ the car in the driveway. I