Thousands of years ago people discovered the phenomenon by chance, and this was _____ the idea of the compass first came from.
The girl ______ an English song in the park is Tony’s sister.[ ]
When I was a little girl, I liked playing ______ studying.[ ]
Do you know the answer _____ the hard question?[ ]
____ yogurt do we need to make fruit salad?—A cup.[ ]
