One of the most important things in education is to let students ____ positive emotions and experience in the process of their learning.
The workers were making so much noise in the workshop, and the boss hurriedly went to see ____.
This is certainly the case, but ____ it is a mistake or not I don’t know.
Villagers often say our village is no longer ____ it used to be.
— ____ can I deal with such a situation?— Take ____ measure you think best.
The reason why I gave in is ____ if I didn’t.