题目

— I didn't realize how popular the restaurant was until I made a reservation the other day. — I beg your pardon, but when __________? A. was it that you realized it       B. it was that you realized it C. you realized it                         D. was you realized it 答案：A西汉时，新疆天山地区正式归属中央政权管辖，是在  （    ）A．公元前138年B．公元前119年C．公元前60年D．公元97年