推 DANIELHSIANG:is吧 08/18 21:21
→ CKdesire:is....主詞是each 單數 08/18 21:58
請問一下
When an active tooth in the shark's jaws is lost or worn down, many
spare teeth lie in seemingly limitless reserve, each of which ____
ready to slide into the appropriate position.
上面斜線的部份...答案應該是 is 還是 are 呢 ??
謝謝
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愛喵們~~~~~跳躍吧~~~~~~
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