make vs do (make/do better/worse case)
Hello!
https://www.dropbox.com/s/7r3omgnh2amkx0h/make%20vs%20do.jpg?dl=0
Here's a key to the exercise which is pretty difficult. I am curious about 'make worse / make better' vs 'do worse / do better'. What is the difference between them? Could you give me some sentences as an example thank you!

Question

make vs do (make/do better/worse case)
Hello! 
https://www.dropbox.com/s/7r3omgnh2amkx0h/make%20vs%20do.jpg?dl=0
Here's a key to the exercise which is pretty difficult. I am curious about 'make worse / make better' vs 'do worse / do better'. What is the difference between them? Could you give me some sentences as an example thank you!

Answer

Do and make are such flexible verbs that when I think of an explanation, I can also think of something opposite.

Without looking at the exercise, usually we say make *something* worse / make *something* better.

For example, I can make the situation better/worse.  You'll make it worse than it is now.

"Do better/worse" can refer to a performance. For example, today I ran a mile in ten minutes.  Tomorrow, I'll do better.  You barely passed the exam, but I am sure you can do better next time.

Edit:
After looking at the exercise, I'd say I agree with you.  They are difficult for a learner.  There are no obvious rules that I can see.

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