【正文】 現(xiàn)在完成時；took off一般過去時；根據(jù)“Ladies and gentlemen, please remain in your seats, fasten your seat belt and bring your seat back.”可知是飛機起飛前，讓乘客準備的內(nèi)容，可推測出此處是用現(xiàn)在進行時表將來，故選B。由“I really need to go now. My children…for me at school”可知，因為孩子們正在學校等我，所以我真得要走，故本句為現(xiàn)在進行時態(tài)。12．A【詳解】句意：請原諒我。11．D【詳解】句意：貝蒂不能和我們一起玩紙牌游戲。故選A。 考查現(xiàn)在進行時?？疾闀r態(tài)?？疾楝F(xiàn)在進行時。故選D。故選D。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。故選C。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 helped19．—Where is Frank?—He _________ to music in his room.A．listens B．is listening C．listened D．was listening20．Grandma ________ dinner. Let’s go and help her.A．is making B．makes C．made D．was making21．—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 watching22．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．My father ________ Beijing next week.A．leaves for B．is leaving for C．left D．leaves25．—How do you find your pany?—A little worried. We ________ ground as a leader in the field of IT with the others speeding up development.A．a(chǎn)re losing B．were losing C．lost D．have lost26．—Lucy, where is Mimi?—She ________ under the chair.A．sleeps B．slept C．is sleeping D．will sleep27．Xifeng Street is closed today because workers _______ some repairs.A．make B．made C．a(chǎn)re making D．were making28．—I _______ a book report now. Can I talk to you later?—No problem.A．write B．wrote C．a(chǎn)m writing D．was writing29．—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．— 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．made31．—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．— Tom, what’s your sister doing?— She ________ her homework in the study.A．does B．will do C．did D．is doing33．— Amy, can you answer the door? I ________ the room.— I’m ing, Mum.A．clean B．cleaned C．a(chǎn)m cleaning D．have cleaned34．Sorry, you can’t take the eraser away, Tony. I ________ it.A．have used B．used C．was using D．a(chǎn)m using35．Be quiet! The students ________ an English exam.A．take B．a(chǎn)re taking C．took D．have made36．Mum ________ fish in the kitchen. It smells so good.A．cooks B．is cooking C．was cooking D．will cook37．—Bob, can you take the dog for a walk?—Sorry, Dad. I ________ an online class.A．take B．took C．a(chǎn)m taking D．have taken38．It’s 4 o’clock in the afternoon. Ms. Green ________ afternoon tea with her friends.