1.I had to finish my homework before I went to bed.2.My father got home very late last night.
问题描述：
1.I had to finish my homework before I went to bed.2.My father got home very late last night.
1.第一句不是有had和went两个过去时单词吗,为什么要用to finish不用to finished?2.第2句句尾有last night,got home为什么不用went home?
答
1因为have to do sth 固定用法‘ 不得不做某事’
2 都可以,但意思不同
got home 到家
went home 回家
加油!不明白再问!第一句能再解释清楚点吗？谢谢！就是说 have to 相当于情态动词，后面一定要接动词原形have 根据句意可用不同时态，但HAVE TO 后的动词一定是原形，故finish 不变。