I would say tipped his hat because without it you need a word phrase or else the sentance wouldn't make sense.
Hope this helps! Happy Studying!
Answer:
The plot can help the reader understand the theme.
Explanation:
2. They ought to have thought of that sooner.
3. Children, would you like me to make something special for dinner tonight?
4. Robert could have forgotten to post the letter.
5. Excuse me, could I have a look at your newspaper?
6. They weren't able to finish the exercise because they didn't have time.
7. Mobile phones must not be used on the plane.
8. Richard can't have stole your camera.
It means that you could truly tell how upset the character was, and the true meaning wept over everyone, of how cruel the world is
