______ he knew nothing about the matter.

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问题 ______ he knew nothing about the matter.

选项 A、He appears as if
B、It seems that
C、It appears as if
D、It seems as if

答案D

解析 It seems后既可接that从句,但此从句必须用陈述语气;也可接as if从句,但此从句可用陈述语气或虚拟语气。用虚拟语气时,从句用过去时表示与主句同时发生的情况,用过去完成时表示先于主句发生的情况。本题从句动词为knew,所给选项均为现在时,故用as if连接,表示虚拟。appear不能和as if连用,故[A]、[C]错误。
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