21.Is that lion or elephant?A.a(chǎn)n.an B.a(chǎn).a C.a(chǎn).an D.a(chǎn)n.a 查看更多

 

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Is that ________ lion or ________ elephant?

A.a(chǎn)n,an             B.a(chǎn),a          C.a(chǎn),an           D.a(chǎn)n,a

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