Like some of my classmate, I can’t live up to my teachers’ expectations; ______, I let them down.
It’s much easier to make friends ________ you have similar interests.
You must learn to consult your feelings and your reason________you reach any decision.
In the global economy,a new drug for cancer,________ it is discovered,will create many economic possibilities around the world.
One can always manage to do more things,no matter________full one’s schedule is in life.
________I have to give a speech,I get extremely nervous before I start.