请根据句意从方框中选择合适的单词，并用其适当形式填空，使句子通顺。
____ This shop sells all kinds of ▲ from different countries.
____ I hear that her uncle has bought a new flat in the city centre ▲ .
____ Jack won the ▲ prize in the school reading contest and he felt very excited.
____ He had to make a ▲ between staying with his parents and going abroad.
____ You know Mike’s hobby is playing football, but ▲ is collecting stamps.
的焦点为圆心，且与双曲线
的两条渐近线都相切的圆的方程为
