important tool(工具)the computer is! -I think so.A.What aB.HowC.What anD.
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important tool(工具)the computer is! -I think so.A.What a | B.How | C.What an | D.How an |
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答案
C |
解析
因为后面名词tool为可数名词单数.故用what a/an又根据important的第一个音标为元音.故选C |
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