The girl arranged to take violin lessons at the training center with her mother ________ she would stay for an hour.
When ______ how old he was, he kept silent.
To their great fear, they found _______ in the heaviest snowfall they had ever had.
The college ______ 7 departments, 4 institutes, and Teaching Division of Basic Computer Science and Basic Lab Center.
You must keep us ______ of how things are going here.
_______ by keeping down costs will Power Data hold its advantage over other companies.