问题
选择题
Robert is said_______ abroad, but I don't know what country he studied in.[ ]
A. to have studied
B. to study
C. to be studying
D. to have been studying
答案
答案：A
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Robert is said_______ abroad, but I don't know what country he studied in.[ ]
A. to have studied
B. to study
C. to be studying
D. to have been studying
答案：A