Lgro was the first person______a modern helicopter.A.to develop B.the development of C.developing D.developed請解釋一下，謝謝

熱心網(wǎng)友

A. 序數(shù)詞+ 名詞＋ to do sth ， 不定式做后置定語 He is always the first to come and the last to leave. 他總是第一個來最后一個離開.

熱心網(wǎng)友

The answer is C.因為這是一個過去時態(tài),A表示未來時態(tài),顯然不是.B是名稱,與后面不搭配.D是被動語態(tài),故不對.C表示已經(jīng)發(fā)生過.

熱心網(wǎng)友

be the first sth to do sth!so A is right|!

熱心網(wǎng)友

A