Look before you leap! You have to ______the costs of the new system against the benefits it will bring.
—It's the office!So you ________ know eating is not allowed here.—Oh,sorry.
Keep up good state of mind even if you ________ fail plenty of times.
A left-luggage office is a place where bags ________ be left for a short time,especially at a railway station.
Oh,I'm not feeling well in the stomach.I ________ so much fried chicken just now.
He hesitated for a moment before kicking the ball,otherwise he ________ a goal.