. For safety’s , I advise you not to stay out too late.
I shall not believe it until I see it_______ myself.
The little boys were tricks on the girl when their teacher came into the classroom.
You did not perform as well as the other competitors--- ,you failed.
I like getting up very early in summer. The morning air is so good ______.
The fire made _____ difficult to rescue the people trapped under the ruins in the earthquake.