Life would be happier if we could only be born at the age of eighty and ________reach eighteen.
We’re going to visit so many ______ places and do lots of _______ things .
The money ______ you were to buy dog food is gone.
As the final examination is coming , the students are busy ____ it.
He likes the birthday presents ______ his friends gave him.
Upon ______ the office, he saw the message on his desk.