用所给词的适当形式填空。每词限用一次。
not plan,  solve,  enjoy,  write,  fill,  discover
Laura usually        beautiful music to get relaxed.
Be careful! She        the cup with hot water.
In the future, humans        more secrets of nature.
To our surprise, the problem        by the expert three days ago.
        to your parents is a good way to communicate with them.
—Where are you going on vacation this summer?
— I        it yet.