【正文】 現(xiàn)在進行時表示“正在圖書館學習”，其解析：C【詳解】句意：——我在教室里找不到邁克了。故選B。你的毛衣穿反了。你的毛衣穿反了?？疾楝F(xiàn)在進行時。她正在打掃教室?？疾闀r態(tài)。故選B。解析：B【詳解】句意：——你好，我可以和吉姆講話嗎？——對不起，他正在開一個重要的會?？疾楝F(xiàn)在進行時。考查動詞時態(tài)?？疾閯釉~時態(tài)?？疾闀r態(tài)?？疾闀r態(tài)。touch摸，主語they是復數(shù)人稱，系詞需用are，故選D。look“看”用于提醒，后面的句子需用現(xiàn)在進行時“be doing”結(jié)構(gòu)?？疾楝F(xiàn)在進行時?！@就來。考查時態(tài)。故選B。他正在洗碗。3．B【詳解】句意：——約翰在哪里？——他在廚房里?？疾閯釉~時態(tài)?？疾閯釉~時態(tài)。根據(jù)答語“Sorry, I… on it.”的語境可推斷出，動作正在進行，應(yīng)用現(xiàn)在進行時，構(gòu)成形式為be doing；主語“I”是第一人稱單數(shù)形式，be用am，work的現(xiàn)在分詞是working。 expect17．—Hey! You nearly hit the tree! What’s up?— Sorry, I ________ the trip to my hometown.A．think about B．a(chǎn)m thinking about C．was thinking about D．thought about18．It dark. Shall I turn on the light？A．gets B．got C．is getting D．was getting19．—Where is mum？ —She________in the kitchen．A．cooks B．is cooking C．will cook D．cooked20．Excuse me. I really need to go now. My children _____________for me at school.A．a(chǎn)re waiting B．waits C．wait D．waited21．— 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 talked22．Joe, answer the phone for me. I ________ how to make dumplings in the kitchen.A．learned B．a(chǎn)m learning C．have learned D．learn23．— 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．—What is your mother doing, Linda? —She ________ dinner in the kitchen now.A．is cooking B．was cooking C．cooks D．cooking25．—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．I can’t hear you. I ______ to an English speech.A．a(chǎn)m listening B．listen C．was listening27．—Look out! Something ________ down from the tree.—Dear me! It’s too dangerous.A．falls B．fell C．is falling D．was falling28．—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．The noise es from the boys. They _______ a party.A．have B．a(chǎn)re having C．will have D．have had30．— 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．—Has your aunt finished writing her novel?—Not yet. She ________ it these days.A．wrote B．writes C．is writing D．will write32．—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 watching33．— Tom, what’s your sister doing?— She ________ her homework in the study.A．does B．will do C．did D．is doing34．— Where is Tom?— Look! He ________with the teacher over there.A．talk B．talks C．talked D．is talking35．My grandma ________ the old photos. There is a big smile on her face.A．enjoys B．enjoyed C．will enjoy D．is enjoying36．— Amy, can you answer the door? I ________ the room.— I’m ing, Mum.A．clean B．cleaned C．a(chǎn)m cleaning D．have cleaned37．—Maggie, could yo