1. Telephone is really ______ most usefull invention. But you know who invented ______ telephone? e ... the B.a ... a C.a ... / D.a ... the 2. The US is hardly in _____ position to criticize other countries for wasting energy supplies.A./ at3. Besides Mary, _____ Smiths have two other daughters, ______ of whom are all interested in making clothes. A. / ...two B. /... the two e... e...thethree

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1。 Telephone is really ______ most usefull invention。But you know who invented ______ telephone? e 。。。 the B。a 。。。 a C。a 。。。 / D。a 。。。 the 分析：most=very；發(fā)明物一般都用the。答案：D2。 The US is hardly in _____ position to criticize other countries for wasting energy supplies。A。/ at分析：有定語修飾的名詞一般都用 the。句中動詞不定式短語作定語。答案：C3。 Besides Mary, _____ Smiths have two other daughters, ______ of whom are all interested in making clothes。A。 / 。。。two B。 /。。。 the two e。。。 e。。。thethree分析：1。表示夫妻倆或一家人，就在復(fù)數(shù)形式的姓氏前加 the； 2。區(qū)別 the three of them 與 three of them，前者表示他們就是三個(gè)人，后者表示“他們之中的三個(gè)人”，“他們”不止三人，是三者以上。句中besides Mary,two other daughters,就是說除了Mary,還有另外2個(gè)女兒,說明他們有3個(gè)女兒。答案：D也許說得不夠清楚，希望對你有幫助。。