I have been to Beijing before.______
A So do i B SO had i C SO have i D SO did I
人气：301 ℃ 时间：2019-12-06 03:37:10
解答
C表示说话者也适用上述情况,用so + be/have/has/情态动词+主语答句可转换成：I have been to Beijing before, too. 故用have若此题改为：I had been to Beijing . 答句用SO had i (=I had been to Beijing, too.)若...
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