[1999全国] Robert is said abroad, but I don't know what country he studied in. A.
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33.[1999全国] Robert is said ________ abroad, but I don'tknow what country he studied in.
| A. to have studied | B. to study |
| C. to be studying | D. to have been studying |
试题答案
答案：A
提示：| 题目考察动词不定式作的完成式——不定式中的动作发生晚于谓语动作的发生
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