-Why do you go to the dancing hall three times a week? -I've taken a(n) ______to dancing.
He behaves _______ he were better than us.
The question of drug-taking is bound to(一定要) ______ at the next conference.
_______ and you will make rapid progress.
Its Ann’s birthday tomorrow. Will you _____me in buying a present for her?
The little boy insisted that he______ nothing wrong and that he ______.