Research shows that people feel unhappy and worried when they have nothing to do. , the happiest are those who are busy.
A. In short B. In fact C. As a result D. For one thing
Research shows that people feel unhappy and worried when they have nothing to do. , the happiest are those who are busy.
A. In short B. In fact C. As a result D. For one thing
B
考查词组用法。In fact“事实上”。