【正文】 動詞的現(xiàn)在進行時；was reading過去進行時；have read動詞的現(xiàn)在完成時。謂語動詞leave是位移動詞，用進行時表示將來。考查時態(tài)。考查現(xiàn)在進行時。飛機正在起飛?？疾闀r態(tài)。我真得要走了?！獩]問題。根據(jù)句意可知，貝蒂不能加入我們是因為她正在打掃教室，強調(diào)此時此刻正在做什么，用現(xiàn)在進行時(am/is/are doing)?？疾閯釉~時態(tài)辨析。根據(jù)“Where is your father, David?”可知，此處是詢問當前的情況，強調(diào)動作正在進行，用現(xiàn)在進行時，結(jié)構(gòu)為：am/is/are + 動詞現(xiàn)在分詞，主語為he，be動詞用is。他們正在開派對?？疾楝F(xiàn)在進行時。根據(jù)“I must leave now.”可知，我哥哥現(xiàn)在正在外面等我，時態(tài)是現(xiàn)在進行時，結(jié)構(gòu)：am/is/are+解析：C【詳解】句意：我現(xiàn)在必須離開了，我哥哥正在外面等我。故選C。故選C。選項A為一般將來時；選項B為現(xiàn)在進行時；選項C為現(xiàn)在完成時；選項D為過去進行時。根據(jù)“Tom, please give me a hand in moving the piano.”及語境可知，此處回答的動作是現(xiàn)在正在進行的，應(yīng)用現(xiàn)在進行時，結(jié)構(gòu)是“be+doing”，故選C。t find Mike in the classroom. Where is he?—Oh, he ________ in the library.A．was studying B．studied C．is studying D．studies17．—Yesterday I received a letter from .—You did? I hear he________for America next year.A．has left B．leaves C．left D．is leaving18．—Hurry up!—One moment. I ________ my s.A．reading B．a(chǎn)m reading C．was reading D．have read19．—Where is mum？ —She________in the kitchen．A．cooks B．is cooking C．will cook D．cooked20．— Tom, where is your little sister?— She _______ in the backyard now.A．is playing B．will play C．played D．plays21．—Tina, let’s go out for shopping.—Sorry, Amy. I __________ my homework.A．do B．a(chǎn)m doing C．did22．You had better not go this way. The workers _________ the road.A．have repaired B．a(chǎn)re repairing C．repaired D．will repair23．— 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 waiting24．My father ________ Beijing next week.A．leaves for B．is leaving for C．left D．leaves25．—Lily, where is our father now? Go and get him for lunch. —Just a moment, please. Father ________ a phone call in his room.A．is making B．was making C．makes D．has made26．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．—Look out! Something ________ down from the tree.—Dear me! It’s too dangerous.A．falls B．fell C．is falling D．was falling29．—What about going to the cinema? There’s a new movie called Hi, Mom.—Not now, I ________ my brother Tony with his English.A．help B．helped C．a(chǎn)m helping D．have helped30．—I _______ a book report now. Can I talk to you later?—No problem.A．write B．wrote C．a(chǎn)m writing D．was writing31．—Mary, may I use your ipad for an hour?—Sorry. I ________ on it.A．work B．a(chǎn)m working C．have worked D．worked32．— Tina, the TV show has already been on. Come and watch together. — Wait a moment. I ________ coffee in the kitchen.A．a(chǎn)m making B．have made C．make D．made33．— Tom, what’s your sister doing?— She ________ her homework in the study.A．does B．will do C．did D．is doing34．My grandma ________ the old photos. There is a big smile on her face.A．enjoys B．enjoyed C．will enjoy D．is enjoying35．—Jane,where are you?—Dad,I________ the car in the driveway. It is r