____in trouble with his neighbors has wasted him a lot of time and effortA.lnvolved B.being involved 为什么不是A

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____in trouble with his neighbors has wasted him a lot of time and effortA.lnvolved B.being involved 为什么不是A
____in trouble with his neighbors has wasted him a lot of time and effort
A.lnvolved B.being involved 为什么不是A

____in trouble with his neighbors has wasted him a lot of time and effortA.lnvolved B.being involved 为什么不是A
形容词前面要有be

B 这个句子缺少主语 只有名词或者名词性的词才能作为主语,所以用动词的Ing形式才能成为名词性质 做主语

B