题目内容
【题目】Parents should warn their children ______ in the river. It's dangerous.
A.to swim
B.swimming
C.not to swim
D.not swimming
【答案】C
【解析】句意：父母应该警告他们的孩子不要在河里游泳，太危险。短语warn sb to do sth.表示警告某人做某事;根据题意，故选C。
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【题目】Parents should warn their children ______ in the river. It's dangerous.
A.to swim
B.swimming
C.not to swim
D.not swimming
【答案】C
【解析】句意：父母应该警告他们的孩子不要在河里游泳，太危险。短语warn sb to do sth.表示警告某人做某事;根据题意，故选C。