优质解答
综合上面两楼的答案.Although it is the first time that he has come to China,he knows Chinese history very well.it is the first time that sb.have/has+done 表示某人第一次做某事.Although he comes to China...
综合上面两楼的答案.Although it is the first time that he has come to China,he knows Chinese history very well.it is the first time that sb.have/has+done 表示某人第一次做某事.Although he comes to China...