We should ________ the best person for the job, and I feel Jane is a remarkable candidate.
—You look so upset, Isabelle. ? —I failed to pass the driving test last week.
Bicycling is good exercise; ____, it does not pollute the air.
Mary is really good at taking notes in class. She can almost every word her teacher says.
When ________ questions in class, one should answer them as clearly as possible.
It was not until I came here ____ I realized this place was famous, for not only its beauty but also its weather.