问题

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
B: to study
C: to be studying
D: to have been studying
正确答案是:
同类题型
He _______ Alice for ten years
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Dad, I’ve finished my assignment.—Good,and ________you play or watch TV, you mustn’t disturb me
The possibility never occurred to us _____ such an old man killed two women for money.[ ]
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