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. I can give you my book for a couple of days (after I have read it).

2. He can ski (for ten years).

3. We knew that she could swim (since a child).

4. You cannot take part in this serious sport competition (until you have mastered good skills).

1. i will be able to give u my book for a couple of days after I have read it.2. He has been able to ski for ten years3. we knew that she was able to swim when she was a child4.You are not able to take part in this serious competition until you have mastered good skills