— These days I can only sleep for four or five hours at night as I’m too busy with my research work..— If you keep going on like that, you are sure to ______ sooner or later.
One of the sides of the board should be painted yellow, and .
---You don’t often see them, do you? ---No, I see of them.
He is clever and hard-working, so he has reason to succeed in the exam.
It’s , as I trust you so much.
. One of the students hasn’t prepared lessons very well.