现在进行时的定义一、选择题1.— Lena, I guess you were in a hurry this morning. You ________ your sweater inside out.— Oh my god, I’ll have it changed immediately.A.woreB.are wearingC.were wearingD.have worn2.— Hello. May I speak to Laura, please?—Sorry, she's not at home. She___________in the library.A.readB.readsC.is readingD.was reading3.Be quiet, please. They _________ a meeting now.A.haveB.hadC.are havingD.were having4.— What’s that noise, Sam?— My little brother ________ his toy car.A.playedB.is playingC.playsD.was playing5.—Hi, Daming. What are you up to?—I ________ a project about family history.A.doB.didC.am doingD.was doing6.—May I speak to Mr. Brown? —I am sorry. He _______ an important meeting in his office at the moment.A.hasB.hadC.is havingD.will have7.— Where are the officers? — Look! They ________ the elephant in the palace now.A.touchedB.will touchC.touchD.are touching8.—Peter, please be quiet. Your brother ________ on the phone.—No problem.A.recordsB.recordedC.was recordingD.is recording9.I must leave now. My brother ________ for me outside.A.waitsB.waitedC.is waitingD.was waiting10.—May I use your computer? —Sorry, I ________ on it.A.workB.workedC.have workedD.am working11.—Hello! May I speak to Tom?—One moment! He _______ an e-mail.A.is sendingB.sentC.sendsD.was sending12.—I can't find Mike in the classroom. Where is he?—Oh, he ________ in the library.A.was studyingB.studiedC.is studyingD.studies13.—Yesterday I received a letter from Mr.An.—You did? I hear he________for America next year.A.has leftB.leavesC.leftD.is leaving14.—I _____to Beijing tomorrow. —Have a good trip!A.fliesB.flyC.am flyingD.flew15.—Mom, it’s so late. Why don’t you go to...