Пожалуйста,безотлагательно надо)Rewrite the following sentences by adding words from the parentheses.

Пожалуйста,безотлагательно надобно)
Rewrite the following sentences by adding words from the parentheses. Replace the modal verb can (could) with the expression to be able to if necessary.
1. They can (never) appreciate your kindness.
2. I was sure you could translate that article (after you had translated so many texts on physics). 3. You can go to the country (when you have passed your last examination).
4. We can pass to the next exercise (when we have done this one).