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’t in. Where were you then?I _______ a walk by the river.A.had B.was having C.have had D.have【答案】B【解析】【詳解】句意:——昨晚我去看你了,但你不在。那時(shí)你在哪里?——我在河邊散步。由上文中 “Where were you then?”可知,問句是詢問“昨天晚上當(dāng)我去看望你的時(shí)候,你正在哪里?”此句表達(dá)的是過去正在發(fā)生的事情,要用過去進(jìn)行時(shí)態(tài)。故答案為B。15.Mary is a kind girl. She often _______ her classmates with their homework.A.help B.helpsC.is helping D.helped【答案】B【解析】句意:瑪麗是一個(gè)善良的女孩,她經(jīng)常幫助她的同學(xué)做作業(yè)。根據(jù)often判斷,經(jīng)常性的動(dòng)作用一般現(xiàn)在時(shí),主語she是第三人稱單數(shù),因此動(dòng)詞要用三單形式,故答案為B。16.Mr. Green _______ London, but he will e back in two days.A.has been to B.has gone to C.goes to D.leaves【答案】B【解析】【詳解】句意:Green先生去了倫敦,但是他將在兩天之后回來。has been to去過某地,已經(jīng)回來了;has gone to去了某地,還沒有回來;goes to去…,一般現(xiàn)在時(shí);leaves離開,一般現(xiàn)在時(shí)。根據(jù)句意but he will e back in two days可知,這里表示Green先生去了倫敦,還沒有回來。故應(yīng)選B。17.Jack ______ a shower when his mother rang him up.A.takesB.has takenC.is takingD.was taking【答案】D【解析】句意:當(dāng)他媽媽給他打電話的時(shí)候杰克正在洗澡。本句考查過去進(jìn)行時(shí)態(tài)。“他媽媽打電話”是過去的時(shí)間,在過去某個(gè)時(shí)間正在進(jìn)行的動(dòng)作,使用過去進(jìn)行時(shí),故選D。18.— Let’s go for a piic if it ________ tomorrow.— But nobody knows if it ________ tomorrow.A.won’t rain。 rains B.doesn’t rain。 will rainC.doesn’t rain。 rains. D.won’t rain。 will rain【答案】B【解析】【詳解】句意:——如果明天不下雨,我們就去野餐吧?!菦]有人知道明天會(huì)不會(huì)下雨。根據(jù)句意可知,第一個(gè)if是“如果”的意思,引導(dǎo)的是條件狀語從句,if引導(dǎo)的條件狀語從句的時(shí)態(tài)用一般現(xiàn)在時(shí)態(tài)表示將來,排除A,D選項(xiàng);第二個(gè)if是“是否”的意思,引導(dǎo)的是賓語從句,根據(jù)時(shí)間狀語tomorrow判斷,從句的時(shí)態(tài)為一般將來時(shí)態(tài),故答案為B。19.When it began to rain heavily, she ________ for a bus at the bus stop.A.waited B.waits C.is waiting D.was waiting【答案】D【解析】句意:當(dāng)雨下得很大時(shí),她正在公共汽車站等公共汽車。A. waited一般過去時(shí);B. waits一般現(xiàn)在時(shí);C. is waiting現(xiàn)在進(jìn)行時(shí);D. was waiting過去進(jìn)行時(shí)。when引導(dǎo)的時(shí)間狀語從句,從句用一般過去時(shí),主句用過去進(jìn)行時(shí);故選D。20.I don39。t want to see the film The Hobbit II because I it already.A.has seen B.saw C.have seen D.see【答案】C【解析】【詳解】句意:我不想看電影《霍比特人》二世”,因?yàn)槲乙呀?jīng)看過了。表