Never before ___saw an NBA match.A.Leon has B.has leon C.did Leon D.Leon did

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Never before ___saw an NBA match.A.Leon has B.has leon C.did Leon D.Leon did
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Never before ___saw an NBA match.A.Leon has B.has leon C.did Leon D.Leon did
Never before ___saw an NBA match.A.Leon has B.has leon C.did Leon D.Leon did

Never before ___saw an NBA match.A.Leon has B.has leon C.did Leon D.Leon did
选B
原因:1,表示否定的词放在句首做状语时,通常句子用部分倒装.
never 放在句首,所以先排除A和D
2, 句子中出现了明显的区分时态的词“before"
before 笼统的表示过去的时间,所以不能用一般过去时,应用现在完成时,表示对现在的影响.

这句话还原正常语序应该是:Leon has never saw an NBA match before.

B 一 倒装句 所以主语在后
二。 出现never 暗示用完成时 所以 B

saw 应该是seen 吧,不然和答案不搭.