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.

李老师和王老师晚上散步，他们同时从家里出发，相向而行，两家相距1140米。同时李老师家的小狗也跟了出来，而且跑在了前面，去找王老师，当小狗和王老师相遇后，立即返回跑向李老师，当遇到李老师后立即返回跑向王老师……，这样不停地跑来 跑去，一直到两人相遇。已知李老师每秒钟走1米，王老师每秒钟走0.9米，小狗每秒钟跑2米，请你算一算，小狗一共跑了多少米?