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...

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).