Wendy hurried to the airport, only ______ the pop singer had left.
The school bus was ______ by a thick fog.
You can't ______ of being lonely when you don't make an effort to meet people and make friends with them.
If we work with a strong will, we can ______ any difficulty, however great it is.
Some smoking and alcoholic drinks are a (n) ______ taste and are not inborn.
Whatever he explained, he couldn't ______ the policeman that he was innocent.