Large quantities of information＿＿＿since then as to how the program has worked.A．
题型：不详难度：来源：
Large quantities of information＿＿＿since then as to how the program has worked.| A．has been offered | B．were offered | C．have been offered | D．was offered |
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答案
| C |
解析
试题分析：句意：自从那时起，大量的关于这个项目怎么运作的信息已经被提供。和since then连用，应该用现在完成时，排除BD，因为主语是Large quantities of information，谓语和quantity的数保持一致，所以用复数，选C。 |
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