There are ______ students in our school.

The education system rather than the teachers ________ for the overburden on the students. [ ]

I’d like to start my own businessnext year – that’s _________ I will face my big challenge in life.

______ is surprising to us is that Tom, for ______ English was once boring, can speak English fluently as though he were a native speaker.

He reminded me of what I should ______ haveforgotten.