Write these sentences in the past.Change the bold words.
1.I can’t find my bag.
2.We can hear loud music.
3.He has to finish his homework.
4.I don't have to get up early.
5.We have to catch the last bus home.

1.I couldn't find my bag.2.We can't hear loud music.3.He hadn't to finish his homework.4.I didn't have to get up early.5.We had to catch the last bus home.