【正文】 解析：C【詳解】句意：——伊森，我們?nèi)ゴ蚧@球，好嗎？——對不起，我不能。根據(jù)“Sorry. I...on it”可知此處表示“在說話的時候正在用ipad”，用現(xiàn)在進(jìn)行時解析：B【詳解】句意：——瑪麗，我可以用你的ipad一個小時嗎？——對不起。考查時態(tài)。根據(jù)問句“Where’s Kelly, Mum?”可知，是問凱莉現(xiàn)在在哪里，所以答語應(yīng)用現(xiàn)在進(jìn)行時，其結(jié)構(gòu)為am/is/are+動詞現(xiàn)在分詞，主語為第三人稱單數(shù)，be動詞用is，make現(xiàn)在分詞為making，故選D。解析：C【詳解】句意：西峰街今天關(guān)閉，因為工人正在進(jìn)行一些維修工作。故選C。25．C【詳解】句意：——你媽媽在哪里，基蒂？——她正在廚房里做晚飯。故選B。根據(jù)“Not yet. She…it these days.”可知，動作還未完成，現(xiàn)在也在做，所以用現(xiàn)在進(jìn)行時，故選C。根據(jù)“Can you give me a hand?”和“Wait a moment.”可知，空處是描述此時此刻正在進(jìn)行的動作，所以用現(xiàn)在進(jìn)行時（am/is/are doing）。21．A【詳解】句意：——爸爸，我解不出這道數(shù)學(xué)題。20．A【詳解】句意：奶奶正在做晚飯。19．B【詳解】句意：——弗蘭克在哪兒？——他正在房間里聽音樂。你在等別人嗎？——是的。故選B。結(jié)合語境可知，母親還沒有睡覺，是因為她正在等未歸的哥哥，故句子應(yīng)用現(xiàn)在進(jìn)行時，故選B。為什么你還不睡？ ——你哥哥還沒有回來。故選D。我正在等她。考查時態(tài)。你的毛衣穿反了?？疾楝F(xiàn)在進(jìn)行時的用法。look“看”用于提醒，后面的句子需用現(xiàn)在進(jìn)行時“be doing”結(jié)構(gòu)。我稍后給你。根據(jù)“What are you up to”可知，答語要用現(xiàn)在進(jìn)行時，表示現(xiàn)在正在進(jìn)行的動作，結(jié)構(gòu)為a解析：C【詳解】句意：——嗨，大明?？疾楝F(xiàn)在進(jìn)行時。6．C【詳解】句意：我現(xiàn)在必須離開了，我哥哥正在外面等我。考查現(xiàn)在進(jìn)行時?？疾闀r態(tài)。cooks烹飪，一般現(xiàn)在時；is cooking烹飪，現(xiàn)在進(jìn)行時；will cook烹飪，一般將來時；cooked烹飪，一般過解析：B【詳解】句意：——媽媽在哪里？——她正在廚房做飯。 expect19．—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．— 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．—Has your aunt finished writing her novel?—Not yet. She ________ it these days.A．wrote B．writes C．is writing D．will write23．The students in our group ________ the final preparation for the match. We are sure to win.A．made B．a(chǎn)re making C．make D．will make24．— 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．—Where is your mother, Kitty?—She ________ dinner in the kitchen.A．cooks B．cooked C．is cooking D．will cook26．—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．—Where’s Kelly, Mum?—She ________ a poster for the munity in her bedroom.A．makes B．will make C．made D．is making29．The zoo keeper is worried because the number of visitors ________ smaller and smaller.A．bee B．a(chǎn)re being C．is being D．have bee30．— 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 have31．—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．—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 te