At the end of the month, another round of mock exams was due, and An Ping, who struggled with physics, pleaded with An Hao to take some time to help him review.
It was rare for him to be so keen on studying, and An Hao was pleased. She set up a table in the yard and began helping An Ping with his homework.
After reviewing several systematic chapters, An Ping felt much more confident about his knowledge, so An Hao took the opportunity to pull out a short quiz from the workbook for An Ping to do.
Sure enough, this time An Ping got all the questions right.
"Sis, I did pretty well on this set of questions, didn't I?" An Ping asked happily, having never passed a physics test during his three years in junior high.
"Very well indeed!" An Hao was also happy for him. "If you had known to study this diligently earlier, you wouldn't be panicking now with exams around the corner."