Question

R
2.
14. Rubber is a very useful thing. What is the negative form of the given sentence?
1. Rubber is a very useful nothing 2. Rubber is not a very useless thing,
thing 4. Rubber is not a very useful thing
3. Not all rubber is a very useful​

Answer 1

Answer:

Rubber is not a very useful thing.

Answer 2

Answer:

4.Rubber is not a very useful thing.

This is the negative form of sentence you mentioned...

Hope this helps you : )