His schllibag is full ------.A.of book B.of books C.for book D.with books
问题描述：
His schllibag is full ------.A.of book B.of books C.for book D.with books
答
B
be full of +名词复数/ 不可数名词,“充满……,装满……” 因为BOOK 是复数,故要加S
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