________ my teacher didn't tell me directly, I still felt that I didn't live up to her expectation.

You will be late ______ you leave immediately.

There is no doubt ______ they all passed the examination.

He doesn’t plan to go back to his home________he makes a fortune in Hong Kong.

_________ difficult and challenging the task may be, we must finish it on time, because there is a possibility _________we’ll be fired if we can’t fulfill the task on time．