About ______ of the books in our school library are written in Chinese.

Wow! You look different! You wear glasses.— Yes, I did. But now I am wearing contact lenses(隐形眼镜).

He told the interviewer that he had run out of money to buy old bikes.

We don’t have enough nurses to look after the patients. At least______ are needed.

The mixture smelt terrible, but the little boy _______ taste it.