【正文】 little sister”及后面的now可知，此處強調(diào)動作正在進行，應該用現(xiàn)在進行時，構(gòu)成為am/is/are doing，此處主語是第三人稱單數(shù)，所以用is playing。4．A【詳解】句意：——湯姆，你的小妹妹在哪里?——她現(xiàn)在正在后院玩?？疾楝F(xiàn)在進行時。他正在洗碗。cooks烹飪，一般現(xiàn)在時；is cooking烹飪，現(xiàn)在進行時；will cook烹飪，一般將來時；cooked烹飪，一般過去時。2．B【詳解】句意：——媽媽在哪里？——她正在廚房做飯。我在做作業(yè)。我在做作業(yè)。 expect B．Are。t e yet. I ___________for her.A．have waited B．a(chǎn)m waiting C．was waiting D．waited15．— 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．a(chǎn)m buying D．have bought16．—Mary, let39。s time for school. Why not get on the bus?—Linda hasn39。t seen each other for a long time.A．Do。 expect19．—Where is Frank?—He _________ to music in his room.A．listens B．is listening C．listened D．was listening20．— Where are the officers? — Look! They ________ the elephant in the palace now.A．touched B．will touch C．touch D．a(chǎn)re touching21．— Shh, don’t make noise! Mrs. Smith ________ the latest news in the studio.— I’m sorry about that.A．presents B．presented C．has presented D．is presenting22．I can’t hear you. I ______ to an English speech.A．a(chǎn)m listening B．listen C．was listening23．Xifeng Street is closed today because workers _______ some repairs.A．make B．made C．a(chǎn)re making D．were making24．—Tina, let’s go out for shopping.—Sorry, Amy. I __________ my homework.A．do B．a(chǎn)m doing C．did25．Don’t make any noise, Jim! Your little sister ________ now.A．sleeps B．slept C．is sleeping D．will sleep26．— Tom, what’s your sister doing?— She ________ her homework in the study.A．does B．will do C．did D．is doing27．— Where is Tom?— Look! He ________with the teacher over there.A．talk B．talks C．talked D．is talking28．—Where’s Nick?—He ________ classes at school.A．had B．will have C．is having D．was having29．The noise es from the boys. They _______ a party.A．have B．a(chǎn)re having C．will have D．have had30．—John, how was your interview on Monday?—No idea. I for the result. I was told it would e in two days.A．wait B．waited C．will wait D．a(chǎn)m waiting31．—Has your aunt finished writing her novel?—Not yet. She ________ it these days.A．wrote B．writes C．is writing D．will write32．Betty can’t join us in the card game. She ________ the classroom.A．has cleaned B．was cleaning C．has cleaned D．is cleaning33．—Where is your father, David?—He ________ the car in the garden.A．will wash B．washed C．is washing D．was washing34．—Jack, can you lend me your camera?—Sorry, I________ it. I will give it to you later.A．used B．a(chǎn)m using C．have used D．was using35．—Can Peter play games with us, Mrs. Hawking?—Wait a minute. He ________ a shower.A．is taking B．taken C．took D．was taking36．Look, many people ________ in the park.A．dance B．danced C．a(chǎn)re dancing D．will dance37．—What’s that noise, Mike?—My little sister ________ with her toy car now.A．plays B．played C．will play D．is playing38．Betty can’t join us in the game. She ________ the clas