______ label to each of the trees, with detailed introduction of their features, and visitors will know more about them and how to protect them.
Water, which seems so simple and common, is makes life possible.
Look! That fellow is too sleepy to work. He ______ up reading until midnight.
According to Lee, it was Ben’s carelessness that _______ the accident. But Ben _______ his wrong doing.
I believe that those mountains ________ with trees in a few years’ time.
______ the scene, he couldn’t help thinking of the description in a book ____ by a British novelist.