It is the test system, ________ the teachers, that is to blame for the heavy burden of middle school students nowadays.[ ]

The number of the students in our school always growing.

All the clerks went home _____ Mr. Wang.Why— Because he had to finish his work.

It was lucky that little Jack was not at home when the fire broke out; otherwise, he____his life.

You will be successful in the interview ____ you have confidence