【正文】 解析：C【詳解】句意：西峰街今天關(guān)閉，因?yàn)楣と苏谶M(jìn)行一些維修工作。考查現(xiàn)在進(jìn)行時(shí)態(tài)。38．A【詳解】句意：——湯姆，你爸爸在哪里？——他正在修理我的自行車。故選B?？疾楝F(xiàn)在進(jìn)行時(shí)態(tài)。clean動(dòng)詞原形；cleaned表一般過去時(shí)；am cleaning表現(xiàn)在進(jìn)行時(shí)；have c解析：C【詳解】句意：——艾米，你能去開門嗎？我正在打掃房間。prepares一般現(xiàn)在時(shí)(主語是三單形式) ；is preparing現(xiàn)在進(jìn)行時(shí)；has prepare解析：B【詳解】句意：——我找不到大衛(wèi)，他在哪兒？——他在家準(zhǔn)備明天的比賽。根據(jù)“Where’s Nick?”可知要回答現(xiàn)在在做什么，用現(xiàn)在進(jìn)行時(shí)，其結(jié)構(gòu)為am/is/are doing?？疾闀r(shí)態(tài)。30．C【詳解】句意：——我能和Mr. Brown說話么？——對(duì)不起，他現(xiàn)在正在開一個(gè)重要的會(huì)議。29．D【詳解】句意：貝蒂不能和我們一起玩紙牌游戲。28．C【詳解】句意：——露西，咪咪在哪兒？——她正在椅子底下睡覺。故選B?？疾閯?dòng)詞時(shí)態(tài)。你知道他在哪兒嗎？——噢，他正在家里為明天的考試做準(zhǔn)備。根據(jù)“You’d better not go this way”可知，工人們正在修路，所以建議不要走這邊，此處使用現(xiàn)在進(jìn)行時(shí)，結(jié)構(gòu)為be doing。根據(jù)“We are sure to win.”可知正在做最后的準(zhǔn)備，用現(xiàn)在進(jìn)行時(shí)，其結(jié)構(gòu)為am/is/are doing。根據(jù)“Can you give me a hand?”和“Wait a moment.”可知，空處是描述此時(shí)此刻正在進(jìn)行的動(dòng)作，所以用現(xiàn)在進(jìn)行時(shí)（am/is/are doing）。21．A【詳解】句意：——爸爸，我解不出這道數(shù)學(xué)題。他正在洗碗。故選D?？疾闀r(shí)態(tài)。我真得要走了。——沒問題。根據(jù)句中“Now”及句意可知，句中動(dòng)作表示正在進(jìn)行，表達(dá)“正在播放”應(yīng)該用現(xiàn)在進(jìn)行時(shí)，其構(gòu)成是am/is/are doing。——對(duì)不起。考查動(dòng)詞時(shí)態(tài)。你在忙什么？——我正在做一個(gè)關(guān)于家族史的項(xiàng)目。根據(jù)“It’s 4 o’clock in the afternoon.”可知，此處強(qiáng)調(diào)在某一時(shí)刻正在發(fā)生的動(dòng)作，用現(xiàn)解析：B【詳解】句意：現(xiàn)在是下午4點(diǎn)。now現(xiàn)在，是現(xiàn)在進(jìn)行時(shí)的標(biāo)志，需用be doing結(jié)構(gòu)；主語students復(fù)數(shù)人稱，be動(dòng)詞用are，故選C。我必須在沒油之前趕到加油站?？疾閯?dòng)詞時(shí)態(tài)。plays動(dòng)詞第三人稱單數(shù)形式；played表一般過去時(shí)；will play表一般將來時(shí)；is playing表現(xiàn)在進(jìn)行時(shí)?？疾楝F(xiàn)在進(jìn)行時(shí)的用法。5．D【詳解】句意：——莉莉，你父親在哪里？——他正在廚房做飯。4．D【詳解】句意：貝蒂不能參加我們的比賽。考查動(dòng)詞時(shí)態(tài)。waters一般現(xiàn)在時(shí)；is watering現(xiàn)在進(jìn)行時(shí)；watered一般過去時(shí)；has watered現(xiàn)解析：B【詳解】句意：——湯姆，爸爸在哪兒？ ——喔，他正在花園里的澆花。s dad?—Oh, he ________ the flowers in the garden.A．waters B．is watering C．watered D．has watered3．—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 using4．Betty can’t join us in the game. She ________ the classroom.A．has cleaned B．was cleaning C．has cleaned D．is cleaning5．—Where is your father, Lily?—He ________ in the kitchen.A．cooked B．cooks C．will cook D．is cooking6．I must leave now. My brother ________ for me outside.A．waits B．waited C．is waiting D．was waiting7．Listen! The boy ________ the piano again.A．plays B．played C．will play D．is playing8．The noise es from the boys. They _______ a party.A．have B．a(chǎn)re having C．will have D．have had9．My oil ________. I must go to the gas station before there is none left.A．has run out B．is running out C．has been run out D．is being run out10．Be quiet, please. They _________ a meeting now.A．have B．had C．a(chǎn)re having D．were having11．It’s 4 o’clock in the afternoon. Ms. Green ________ afternoon tea with her friends.A．has B．is having C．had D．was having12．—Hi, Daming. What are you up to?—I ________ a project about family history.A．do B．did C．a(chǎn)m doing D．was doing13．Grandma ________ dinner. Let’s go and help her.A．is making B．makes C．made D．was making14．—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 repaired15．Now ABC Cinema on Forest Road ________ the old film called Roman Holiday.A．is show B．is showing C．is showed D．is on16．—Peter, please be quiet