—— Tom, did Mr.Li join you in your dicussion?—— No, he____, but he happened to have fallen ill.
As ___ boy, he should learn how to behave like ____ real man sooner or later.
Your story is perfect; I’ve never heard _______ before.
We thought it strange ________ Xiao Zhang did not take part in the sports meet of our school.
______ the challenges, I become stronger than I used to be.
A survey of the opinions of expertsthat three hours of outdoor exercise a weekgood for one’s health.