【正文】 現(xiàn)在進(jìn)行時(shí)。根據(jù)“What are you up to”可知，答語(yǔ)要用現(xiàn)在進(jìn)行時(shí)，表示現(xiàn)在正在進(jìn)行的動(dòng)作，結(jié)構(gòu)為am/is/are doing，故選C。你在忙什么？——我正在做一個(gè)關(guān)于家族史的項(xiàng)目?？疾閯?dòng)詞時(shí)態(tài)。13．C【詳解】句意：——嗨，大明。考查現(xiàn)在進(jìn)行時(shí)。根據(jù)“Tony, hurry up! We…for you now.”可知，此處強(qiáng)調(diào)動(dòng)作正在發(fā)生，用現(xiàn)在進(jìn)行時(shí)，故選解析：D【詳解】句意：——托尼，快點(diǎn)！我們現(xiàn)在在等你。——這就來(lái)。根據(jù)“can you take the dog for a walk?”以及回答“Sorry, Dad.”可知句子時(shí)態(tài)應(yīng)用現(xiàn)在進(jìn)行時(shí)，其結(jié)構(gòu)為be+動(dòng)詞的現(xiàn)在分詞，主語(yǔ)是I，be動(dòng)詞用am，take的現(xiàn)在分詞是taking，故選C。我在上網(wǎng)課?？疾楝F(xiàn)在進(jìn)行時(shí)態(tài)。11．C【詳解】句意：——鮑勃，你能去遛遛狗嗎？——對(duì)不起，爸爸。根據(jù)“He is in the kitchen.”和“now”可知，該句為現(xiàn)在進(jìn)行時(shí)，謂語(yǔ)結(jié)構(gòu)是：be+動(dòng)詞的現(xiàn)在分詞?？疾楝F(xiàn)在進(jìn)行時(shí)。will wash動(dòng)詞的一般將來(lái)時(shí)形式；is washing動(dòng)詞的現(xiàn)在進(jìn)行時(shí)形式；washes動(dòng)詞的三單形式；was解析：B【詳解】句意：——約翰在哪里？——他在廚房里。他正在洗碗。故選D?？疾閯?dòng)詞時(shí)態(tài)。根據(jù)后句“I was told it would e in t解析：D【詳解】句意：——John，你周一的面試怎么樣？——不知道，我在等結(jié)果。我被告知（面試）結(jié)果將在兩天后知道。故選B。根據(jù)“now”可知要用現(xiàn)在進(jìn)行時(shí)，其結(jié)構(gòu)為be doing。解析：B【詳解】句意：——你好，我可以和吉姆講話嗎？——對(duì)不起，他正在開一個(gè)重要的會(huì)。主語(yǔ)he后接be動(dòng)詞is?？疾楝F(xiàn)在進(jìn)行時(shí)。故選D?？疾楝F(xiàn)在進(jìn)行時(shí)。根據(jù)上句“Betty can’t join us in the game”，此處指的是現(xiàn)在發(fā)生的事，故應(yīng)用現(xiàn)在時(shí)，且根據(jù)解析：D【詳解】句意：貝蒂不能參加我們的比賽。她正在打掃教室。故選C?？疾閯?dòng)詞時(shí)態(tài)和the number of的用法?？疾閯?dòng)詞時(shí)態(tài)和the number of的用法。故選A?？疾楝F(xiàn)在進(jìn)行時(shí)的用法。考查現(xiàn)在進(jìn)行時(shí)的用法。故選B。由此可推斷我正在用，稍后借給你，符合語(yǔ)境?？疾閯?dòng)詞時(shí)態(tài)。根據(jù)“Sorry...”及“I will give it to you later.”可知，抱解析：B【詳解】句意：——杰克，你能把你的照相機(jī)借給我嗎？——抱歉，我正在用。我稍后給你。故選C?？疾楝F(xiàn)在進(jìn)行時(shí)的用法。考查現(xiàn)在進(jìn)行時(shí)的用法。故選C。s not at home.”可知，這里是現(xiàn)在進(jìn)行時(shí)，其結(jié)構(gòu)是be doing的形式。read讀書，原形；reads讀書，第三人稱單數(shù)； is reading 正在讀書，現(xiàn)在進(jìn)行時(shí)；was reading正在讀書，過(guò)去進(jìn)行時(shí)。她正在圖書館看書。read讀書，原形；reads讀書，第三人稱單數(shù)； is reading 正在讀書，現(xiàn)在進(jìn)行解析：C【詳解】句意：——你好。她正在圖書館看書。2．C【詳解】句意：——你好。根據(jù)問(wèn)句“where is your little sister”及后面的now可知，此處強(qiáng)調(diào)動(dòng)作正在進(jìn)行，應(yīng)該用現(xiàn)在進(jìn)行時(shí)，構(gòu)成為am/is/are doing，此處主語(yǔ)是第三人稱單數(shù)，所以用is playing。根據(jù)問(wèn)句“where is your little sister”及后面的now可知，此處強(qiáng)調(diào)動(dòng)作正在進(jìn)行，應(yīng)該用現(xiàn)解析：A【詳解】句意：——湯姆，你的小妹妹在哪里?——她現(xiàn)在正在后院玩。 expect18．—Where is Frank?—He _________ to music in his room.A．listens B．is listening C．listened D．was listening19．It dark. Shall I turn on the light？A．gets B．got C．is getting D．was getting20．The noise es from the boys. They _______ a party.A．have B．a(chǎn)re having C．will have D．have had21．— 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．made22．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 make23．You had better not go this way. The workers _________ the road.A．have repaired B．a(chǎn)re repairing C．repaired D．will repair24．— 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 cleaned25．—What is your mother doing, Linda? —She ________ dinner in the kitchen now.A．is cooking B．was cooking C．cooks D．cooking26．—Lucy, where is Mimi?—She ________ under the chair.A．sleeps B．slept C．is sleeping D．will sleep27．I can’t hear you. I ______ to an English speech.A．a(chǎn)m listening B．listen C．was listening28．Xifeng Street is closed today because workers _______ some repairs.A．make B．made C．a(chǎn)re making D．were making29．Betty can’t join us in the card game. She ________ the classroom.A．has cleaned B．was cleaning C．has cleaned D