题目内容
---Why don’t you use the knife?
---It needs ___________________.
| A.sharpen | B.being sharpened | C.sharpening | D.to sharpen |
C
考查need doing需要被…="need" to be done,句意是:为什么不用小刀?--需要磨锋利了。选C。
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题目内容
| A.sharpen | B.being sharpened | C.sharpening | D.to sharpen |