—Our teachers and parents always warn us not to smoke.—Yes, actually, the risk of heart disease is a powerful argument ____ smoking.
_____his leg wounded accidentally, he still came to the meeting on time.
How I wish I ____ the mistake! Everybody present was angry with me.
I could have called you for help, but I ____ your number.
He wasted a lot of time playing football, otherwise he ________the exam.
-Why are you make much noise? -I just can’t help _____.