31．—My son is addicted to drugs．He isn’t hopeless，is he? —Yes，he mends his ways and starts

发布时间：2020-08-16 06:46:13


31．—My son is addicted to drugs．He isn’t hopeless，is he?
—Yes，    he mends his ways and starts all over．A．ifB．whenC．even ifD．UnlessD 

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(答案→)D 
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