高中英语情态动词,虚拟语气题(2题)
1.Heseldomlistenstoothers.He_____answerforwhathehasdone.
AshallBwillCcanDwould
2.IfonlyI_____howtooperateacomputerasyoudo!
AhadknownBwouldknowCshouldknowDknew
请给出相应语法知识的解释,
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