The best way to explore _______ countryside is on _______foot.
It is not what you said but the way you said it ____ made him angry.
Since he graduated from university, he ____ a job but he hasn’t got one so far.
____ the tomb, his bird was eaten by a snake.
Some people say jogging is good; ____ believe jogging does harm to people’s health.
If ____, the dirty air will lead you to fall ill.