Hong Zhanhui never gives up trying. It is the love and responsibility _______ has driven him to go through hardships and survive in life.
It is not a serious illness. I guess she will ______ soon.
From his ______ look, we could see that he hadn’t expected that we could raise such ______ questions to him.
The laboratory was well ______ for atomic research.
You must ______ a wide vocabulary if you want to learn a language well.
Don’t bother Tom, he is ______ with the experiment on water molecules in the lab.