20. Keven, on behalf of his company, successfully signed a contract with a multinational corporation this morning. He 　　　 ecstatic at that moment.　
(A)can't be　
(B)couldn't have been　
(C)must be　
(D)must have been

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統計： A(25), B(70), C(94), D(225), E(0) #1918580

詳解 (共 3 筆)

#3281279
Keven代表他的公司今天早上成功與一家...
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#5620485
Keven, on behalf of his company, successfully signed a contract with a multinational corporation this morning. He 　　　 ecstatic at that moment.　
(A) can't be　
(B) couldn't have been　
(C) must be　
(D) must have been
凱文在今早代表公司成功地和跨國公司簽約，他在那時一定高興極了，
(C)Must be為現在
(D)Must have been 為過去完成，選此最合適今早時間點
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