单选题Theteachersaysthisis________forth

单选题 The teacher says this is ________ for the beginners．A.too difficult a bookB.a too difficult bookC.too difficult bookD.difficult too a book

A解析too结构中冠词的位置与在so结构中相同。too（so，as，how，however）+adj．+冠词+n．all（both，half，double，many，what，such）+冠词+（adj．）+n．

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