题目内容
---All the skaters on the lake ______ that the ice might be too thin.
---Yes, you see, spring is coming and it's getting warmer.
- A.have been warned
- B.have warned
- C.are warned
- D.warned
A
此题系小对话,而且上下文相当丰富,有利于措辞定向。
此题系小对话,而且上下文相当丰富,有利于措辞定向。
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