Our classroom by us every day!

Have you been to the Great Wall?－Perhaps not in my memory. _______ , it might have been during my early childhood.

Did you go to bed early last night?— No. I watched a movie, so I didn’t go to bed until 11 o’clock.

Unemployment in some western countries is on the crease. A growing number of young people, ______, are finding themselves out of work.

I’ll never forget the lesson ______ last year.