【題目】The self-diving plane proves to be useful in many ways.___smart invention it is!

A. What B. What a C. What an D. How

【答案】B

【解析】句意:自潛水飛機(jī)在很多方面都有用途。多么聰明的發(fā)明。「袊@句一般有兩種結(jié)構(gòu):What +(a/an)+形容詞+名詞+主語(yǔ)+謂語(yǔ)!名詞是復(fù)數(shù)或不可數(shù)名詞,不加a/an。How+形容詞+主語(yǔ)+謂語(yǔ)!本句的中心詞invention為可數(shù)名詞單數(shù)形式,應(yīng)該用what來(lái)引導(dǎo),smart以輔音音素開(kāi)頭,前面應(yīng)該用不定冠詞a,故答案為B。

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