The charity aims to provide assistance to people .
To keep healthy, most retired people _______ jogging as a regular form of exercise.
The young man stopped and looked back as if ______ whether he was being followed.
The patient’s dangerous condition ____the doctors and nurses many a sleepless night.
______ down on the ground, he struggled to his feet and held up his head, _______his enemy.
----Can I look at the menu for a few more minutes before I decide? ----Of course. ______, sir.