It was ______ that they all went swimming in the river[ ]

She _______ for 15 years, yet she still doesn’t know what kind of man she _______.

No matter what happens, the fact that Diaoyu Island belongs to China will ______ change.

We keep the belief that the bright future______ to those who are well educated

Putting on a happy face not only helps us make friends butalso makes us feel better —_________