请教一下,多谢!
12.Areas of fertile soil called deltas, usually __ are formed by mud deposited at the mouth of a river.
(A)triangular in shape
(B)their shape is triangular
(C)they have a triangular shape
(D)triangular shape
我选的D,很不明白??
麻烦详细解答一下,以免一错再错!
多谢!
举报
各位,遗憾的是我们都错啦
标准答案是A呀?
哪位高手指导一下!!感激ing!
主语是shape,triangular修饰shape
我觉得 中间是一个 胜列的定语从句 which is usually triangular in shape
选项是错误的 ,如果考虑是插入语 则 usually a triangular shape ,
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