My English teacher gave us a suggestion yesterday, _____is often the case, ______our monitor organize a debate after class.
I need some red ink badly, but there’s _____ at hand.
You can go out _____ you promise to be back before 11 o’clock.
There are forty five students in our class, and they are _____ interested in football.
It is too early in the _____ to expect many visitors to the city.
Don’t _____ to correct me if I made a mistake.