①研究光合作用的反应过程和噬菌体侵染细胞实验﹣﹣同位素标记法

②孟德尔豌豆杂交实验提出遗传定律﹣﹣假说演绎法

③DNA双螺旋结构的发现﹣﹣模型建构法

④探究酵母菌细胞呼吸方式﹣﹣对比实验法

⑤分离各种细胞器和叶绿体中色素的分离﹣﹣差速离心法

⑥摩尔根的果蝇杂交实验证明基因在染色体上﹣﹣类比推理法．

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.