While ____ the dog, you should take care not to get loose . Otherwise, it may be
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While ____ the dog, you should take care not to get loose . Otherwise, it may be dangerous to strangers.| A．walking; | B．walked | C．walking for | D．training for |
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答案
| A |
解析
| 考查状语从句的省略。“在遛狗时注意不要松手，否则狗会威胁到陌生人。”While （you are）walking the dog--- |
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