It is vital that we _____ act out at once to protect the environment.
Tsinghua University, __________ in 1911, is home to a great number of outstanding figures.
I was __________ to find that I won the competition to design a new computer. The news was really __________.
__________, she stood and stared while the police arrested her husband.
From his __________ look, I could see that he didn't believe what I said.
She is not very __________ about the idea of going camping. I think she will stay at home reading.