Things have been _________ badly for them.A:gone B:going C:happened D:happening

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Things have been _________ badly for them.A:gone B:going C:happened D:happening

Things have been _________ badly for them.A:gone B:going C:happened D:happening
Things have been _________ badly for them.A:gone B:going C:happened D:happening

Things have been _________ badly for them.A:gone B:going C:happened D:happening
B

B have been doing 有个延续性,
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选B,动作持续,have/has+been+现在分词