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题目内容
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They ______ thankful to have the opportunity to further their studies.
(A) ：would like to be
(B) ：ought to be
(C) ：would rather be
(D) ：had better be
(A) ：would like to be
(B) ：ought to be
(C) ：would rather be
(D) ：had better be
参考答案
