Could you tell us ______ happens when one student in class expresses a personal opinion _______ maybe upsets other students?

It’s two and a half weeks since the exchange students __________ Wuxi.

There an exciting softball match on TV this evening.

When Tim ___ why he was late for school, he just kept silent.

I don’t know if she __________ tomorrow.—— If she _________ tomorrow, I’ll call you.