1、take me fishing这种形式可不可以?不是一直都用take me to fish 2、I didn't manage to do it until you had explained how.这一句中的until引导时间状语从句为什么用过去完成时?不是发生在didn't manage 3、That's something I ought to do.改错.答案说是在something后面加that.但这里的something不是作宾语可以省略吗? 4、,Not onle did she make a promise,but she also kept it.这句话中make为什么不用过去完成时?不是发生在keep之前吗?