Still, it was easy to get tripped up by some of the trick questions.
There wasn't a huge difference between scoring a 60 and a 70, really. After all, getting just one multiple-choice question wrong cost five points.
But He Lingyi had such high expectations for herself right now. If her scores went down instead of up, her motivation would only continue to dwindle.
So, Jiang Sifan patiently spent over half an hour going over a few typical, fundamental problems she had gotten wrong.
As for the more complex problems at the end, it was impossible to explain them clearly in just a few words over the phone. They would have to wait until their weekend tutoring session to be sorted out.
He Lingyi's voice finally sounded less dejected, though it was still a bit hoarse from crying.
"Brother Sifan, thank you," she said softly.
"It's nothing." Jiang Sifan glanced at the time. It was almost ten. He urged her, "Get some sleep. You have class tomorrow."
