1. Twenty years is a long time.

2. twenty years is a long period.

3. 100 kg is very heavy.
4. 100 kg is a heavy weight.

5. Two hundred dollars is a lot of money for me.

6. Two hundred dollars is a great/good sum of money.

7. Twenty miles is a long distance.
8. Twenty miles is very long.
--------------------
Would you check the sentences? Correct errors, please?

1 answer

They are all correct.