—Have you ever been to Singapore?—Yes I there three times in alone.A. have beenB. h

问题补充：

—Have you ever been to Singapore?

—Yes, I there three times in alone.

A. have been

B. have gone

C. went

D. had gone

答案：

A. have been

B. have gone

(答案→)C. went

D. had gone

解析：C 考察时态。句义：—你曾经去过新加坡吗？—是的，我在独自去过新加坡三次。由句义可知，现在的我不在新加坡，所以去新加坡是与现在无关的事情，因此选择一般过去时。