Do you know the reason ____ she has changed her mind?
You park here! It’s an emergency exit.
The palace caught fire three times in the last century, and little of the original building _______now.
If I had known about this computer program, a huge amount of time and energy .
— Her father is very rich. —________ She wouldn’t accept his help even if it were offered.
The experiment shows that proper amounts of exercise, if regularly, can improve our health.