【正文】 Why don’t you go to bed?—Your brother hasn’t e back yet. I ________ for him.A．wait B．a(chǎn)m waiting C．has waited D．waited17．—Tom, where39。s not at home. She___________in the library.A．read B．reads C．is reading D．was reading19．—Where is mum？ —She________in the kitchen．A．cooks B．is cooking C．will cook D．cooked20．—Tom, please give me a hand in moving the piano. —Sorry. I ________ my car.A．repair B．repaired C．a(chǎn)m repairing D．have repaired21．—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 had 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．—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．—Look out! Something ________ down from the tree.—Dear me! It’s too dangerous.A．falls B．fell C．is falling D．was falling27．—Where’s Kelly, Mum?—She ________ a poster for the munity in her bedroom.A．makes B．will make C．made D．is 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．—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 using30．— Dad, I can’t work out this math problem. Can you give me a hand?— Wait a moment. I ________ on the phone.A．a(chǎn)m talking B．will talk C．was talking D．have talked31．—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．—Where’s Nick?—He ________ classes at school.A．had B．will have C．is having D．was having34．—I can’t find David. Where is he?— He________ for tomorrow’s petition at home.A．prepares B．is preparing C．has prepared D．prepared35．My grandma ________ the old photos. There is a big smile on her face.A．enjoys B．enjoyed C．will enjoy D．is enjoying36．—Jane,where are you?—Dad,I________ the car in the driveway. It is really dirty.A．wash B．will wash C．a(chǎn)m washing D．was washing37．Many children in South Sudan ________ the trouble of hunger at the moment.A．face B．faces C．is facing D．a(chǎn)re facing38．Sorry, you can’t take the eraser away, Tony. I ________ it.A．have used B．used C．was using D．a(chǎn)m using39．—Maggie, could you help pick up the phone? It ________.—OK, Mum.A．rings B．rang C．will ring D．is ringing40．Be quiet. Your brother ________ classes online.A．has B．is having C．will ha