I think the telephone is the second ___ A.helpful B.more helpful C.most helpful D.the most h...I think the telephone is the second ___A.helpful B.more helpful C.most helpful D.the most helpful

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I think the telephone is the second ___ A.helpful B.more helpful C.most helpful D.the most h...I think the telephone is the second ___A.helpful B.more helpful C.most helpful D.the most helpful

I think the telephone is the second ___ A.helpful B.more helpful C.most helpful D.the most h...I think the telephone is the second ___A.helpful B.more helpful C.most helpful D.the most helpful
I think the telephone is the second ___ A.helpful B.more helpful C.most helpful D.the most h...
I think the telephone is the second ___
A.helpful B.more helpful C.most helpful D.the most helpful

I think the telephone is the second ___ A.helpful B.more helpful C.most helpful D.the most h...I think the telephone is the second ___A.helpful B.more helpful C.most helpful D.the most helpful
选C.second后面接最高级.常见句式 It is the second + 最高级 +n.