2. The young man made a _________ to his parents that he would try to earn his own living after graduation.
A. prediction B. promise C. plan D. contribution
3. –David, keep ______ in mind that you have to be home by 10 o’clock.
--OK, Mom, I will.
A. it B. me C. this D. one
4. –Hi, Mark. How was the musical evening?
--Excellent! Alex and Andy performed _______ and they won the first prize.
A. skillfully B. commonly C. willingly D. nervously
