【正文】 _______ her speech for tomorrow’s meeting.A．is preparing B．will prepare C．was preparing D．has prepared2．—Where is mum？ —She________in the kitchen．A．cooks B．is cooking C．will cook D．cooked3．—Where is John?—He is in the kitchen. He ________ the dishes now.A．will wash B．is washing C．washes D．washed4．— Tom, where is your little sister?— She _______ in the backyard now.A．is playing B．will play C．played D．plays5．Be quiet, please. They _________ a meeting now.A．have B．had C．a(chǎn)re having D．were having6．—Hi, Daming. What are you up to?—I ________ a project about family history.A．do B．did C．a(chǎn)m doing D．was doing7．Grandma ________ dinner. Let’s go and help her.A．is making B．makes C．made D．was making8．—May I speak to Mr. Brown? —I am sorry. He _______ an important meeting in his office at the moment.A．has B．had C．is having D．will have9．Listen! The boy ________ the piano again.A．plays B．played C．will play D．is playing10．—Candy, could you please help me do the dishes?—Sorry, Mom. I ________ my homework.A．do B．did C．a(chǎn)m doing D．have done11．—Where is your father, Lily?—He ________ in the kitchen.A．cooked B．cooks C．will cook D．is cooking12．— Lena, I guess you were in a hurry this morning. You ________ your sweater inside out.— Oh my god, I’ll have it changed immediately.A．wore B．a(chǎn)re wearing C．were wearing D．have worn13．Ladies and gentlemen, please remain in your seats, fasten your seat belt and bring your seat back. The plane________.A．takes off B．is taking off C．has taken off D．took off14．Listen! Someone __________ in the next room.A．sings B．sang C．was singing D．is singing15．—Yesterday I received a letter from .—You did? I hear he________for America next year.A．has left B．leaves C．left D．is leaving16．—I _____to Beijing tomorrow. —Have a good trip!A．flies B．fly C．a(chǎn)m flying D．flew17．—Mom, it’s so late. 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．waited18．—Tom, where39。s dad?—Oh, he ________ the flowers in the garden.A．waters B．is watering C．watered D．has watered19．— Hello. May I speak to Laura, please?—Sorry, she39?？疾闀r(shí)態(tài)?？疾闀r(shí)態(tài)。故選A?？疾閯?dòng)詞時(shí)態(tài)?？疾閯?dòng)詞時(shí)態(tài)。根據(jù)句意問句詢問媽媽現(xiàn)在在哪里，可知是現(xiàn)在進(jìn)行時(shí)，表示媽媽正在做飯。3．B【詳解】句意：——約翰在哪里？——他在廚房里。考查現(xiàn)在進(jìn)行時(shí)。他正在洗碗。will wash動(dòng)詞的一般將來時(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；washed動(dòng)詞的過去式。故選B。考查時(shí)態(tài)。考查時(shí)態(tài)。故選A。他們現(xiàn)在正在開會(huì)。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。他們現(xiàn)在正在開會(huì)。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。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)“What are you up to”可知，答語要用現(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a解析：C【詳解】句意：——嗨，大明?？疾閯?dòng)詞時(shí)態(tài)。7．A【詳解】句意：奶奶正在做晚飯。考查動(dòng)詞時(shí)態(tài)。我們?nèi)椭?。根?jù)“Let’s go and help her”可知，此處指讓我們?nèi)椭谧鐾盹埖哪棠?，故為現(xiàn)在進(jìn)行時(shí)，其結(jié)構(gòu)為am/is/are doing。8．C【詳解】句意：——我能和布朗先生通電話嗎？——很抱歉，他現(xiàn)在正在辦公室召開重要的會(huì)議。根據(jù)語境及“at the moment”可知，打來電話的時(shí)候，布朗先生正在開會(huì)，時(shí)態(tài)用現(xiàn)解析：C【詳解】句意：——我能和布朗先生通電話嗎？——很抱歉，他現(xiàn)在正在辦公室召開重要的會(huì)議。根據(jù)語境及“at the moment”可知，打來電話的時(shí)候，布朗先生正在開會(huì)，時(shí)態(tài)用現(xiàn)在進(jìn)行時(shí)，結(jié)構(gòu)為am/is/are doin