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20.— I 根據(jù)all the time recently可知句子用現(xiàn)在完成進(jìn)行時態(tài),故答案為:C。最近來的人太多了。D.C.B. all the time recently.A.19.—So much remains to be done! —Well, it39。Mary寫論文這個動作從過去一直持續(xù)到現(xiàn)在,而且還可能繼續(xù)下去,應(yīng)該用現(xiàn)在完成進(jìn)行時,故答案為:C。is writing【答案】 C 【解析】【分析】句意:—Mary去哪了?—她吃完早飯就出去了,從那以后她就一直在圖書館里寫論文,你可以在那找到她。C.had written her paper in the library ever since. You can find her there.A.18.—Where is Mary? —Oh, she went out after breakfast, and故選D。have been masking【答案】 D 【解析】【分析】句意:你壓抑了很久,現(xiàn)在是時候放松一下了。have been maskedwill have maskedmasked17.You ____your depression for long, and now it39。根據(jù)本題題意,“我”已經(jīng)從一周前開始,持續(xù)工作直至現(xiàn)在(有表達(dá)時間段的提示短語the whole week),唯有現(xiàn)在完成進(jìn)行時可表達(dá)這一含義,應(yīng)選用have been doing的結(jié)構(gòu),故選C。worked【答案】 C 【解析】【分析】句意:—你怎么了?看起來真的壓力很大。have been workinghave workedwork16.— What39。故選C。 the development of the country…”在本句中the rigid and outdated rules是先行詞,在定語從句中作主語;“這些僵化的和過時的規(guī)則一直在限制國家的發(fā)展”,表示這個動作從過去一直到現(xiàn)在,這個動作一直在進(jìn)行。will limit【答案】 C 【解析】【分析】句意:據(jù)新當(dāng)選的法國總統(tǒng)Macron,在不久的將來法國將改革那些一直在限制國家發(fā)展的僵化和過時的規(guī)則。have been limitinghad limitedlimited”故選A。——不可能是他。一方面,表示推測語氣時,can’t意為“不可能”; may not意為“可能不是”;must不用于否定句;另一方面,“have/has gone to+地點(diǎn)”意為“去了某地”,表示不在說話人這兒;“have/has been to +地點(diǎn)”表示“去過某地”。mustn’t。 beenC.can’t。 gone14.—Look, Jim is talking to his friend under the tree.—It _______ be him. He has _______ back to Canada.A.故選B。分析句子可知,本句中的who指代前面的先行詞doctor Smith,是單數(shù)。D.is workingB.had workedin Shanghai for more than ten years, is considering working in Huaian, but he hasn39?!军c(diǎn)評】考查動詞時態(tài),本題涉及現(xiàn)在完成進(jìn)行時的應(yīng)用?!蚁戳艘惶斓囊路?。D.C.B.12.— You look tired.— I ___________ clothes all day. A.故答案為C。D.C.B.in the library every night over the last three months. A.故B正確。句意:四個小時以來,我一直都在做家庭作業(yè),但是我不確信我是否能在明天上交它。D.had been doingB.have done構(gòu)成:have+been+doing。故選C項。was waiting【答案】 C 【解析】【分析】考查現(xiàn)在完成進(jìn)行時。have been waitingwaitedam waiting9.Why, you39。他不可能這樣,他只工作了一個小時。has only been working【答案】 D 【解析】【分析】考查動詞時態(tài)。just workedhas just workedhad worked8.— Tom says