IS this your first time to come to China?这句话对吗?

IS this your first time to come to China?这句话对吗? This is her first time ____ to china.A:come B:coming C:to co Is this the first time coming to china 这句话是正确的吗 It is our first time to come to china. This is the first time for Helen to visit China. this is the first time i came to china和this is the first tim This is my first time to receive your email This is their first visit to China This is her first time to China and she wants to ( ) some fr This is her first time (次数) to China and she wants to （） som 一道英语选择题、谢It is the first time that you have come to China,( it is the first time that i have come to China