—DoyouknowthatMrs.ObamacametoChinawithhermotherandtwoda...
来源：语文精选馆 1.33W
问题详情：
—Do you know that Mrs. Obama came to China with her mother and two daughters?
—Yes. And it is their ______ visit to China.
A. one B. first first D. once
【回答】
B
知识点：数词
题型：选择题
