题目内容
—It’s dangerous here. We must not let people fall down.
—You’re right. Come on!
- A.stop... by falling
- B.keep...falling
- C.protect...falling
- D.prevent...from falling
D
划线部分的意思为阻止....做某事故选D
划线部分的意思为阻止....做某事故选D
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