The best way to explore _______ countryside is on _______foot.
— Has Sam finished his homework today? — I have no idea. He ________ it this morning.
— I heard they went skiing in the mountains last winter.— It ________ true because there was little snow there.
The position, however, ________ you are applying, is not quite a wellpaid one.
Cultural exchange ________ better understanding.
You can come here to ask me ________ if you have any questions.