A survey of China's citizens found that some smokers are unwilling to kick the habit because they aren't fully aware ________ the harm it does to health.
Five apples are not enough for them, they need ____.
I don’t think this jacket _______ you and that your hat _______ this jacket perfectly.
____person like him won’t be satisfied with ____ little progress that he has made.
No man is born _____. We all need to learn to become _____.
English is one of the ______ languages at international meetings.