他在挑选朋友时非常挑剔，只和那些诚实可靠的人交往。

He is very ___selective when choosing friends, only associating with those who are honest and reliable.

这家餐厅对食材的选择非常严格，只使用特定产地的有机蔬菜。

This restaurant is very ___selective about ingredients, using only organic vegetables from specific regions.

这款防晒霜有选择性，只阻挡有害的紫外线而允许有益的阳光通过。

This sunscreen is ___selective, blocking harmful UV rays while allowing beneficial sunlight through.