—Cathy, did you attend the lecture given by Mr. Black last night? —No. I ______ a report at the office.
During their ten-day vacation,they traveled to England ________their own expense.
The table is ________;please carry it away.
As long as you stick to it,you’ll make progress ________.
The two balls fell ________the same speed and landed ________the ground at the same time.
After many years of hard work,Mary and her husband had at last paid ________all the money they had borrowed.