小题1:昨天，我看见他和另一个男孩彼得说话，我忍不住想他是不是想让彼得取代我做他最好的朋友。

Yesterday, I saw him talking to another boy, Peter, and I cannot _______ _______ if he wants Peter to be his best friend instead of me.

小题2:我问过周围的人，发现许多人都愿意支付稍高一些的价钱来购买环保产品。

_______ _______, I find many people willing to pay a little higher price for the things that are friendly to the environment.

小题3:该组织还监视长江，阻止非法捕捞。非法捕捞已经威胁到野生动物的数量。

It also watches the river and stops the illegal hunting of animals, which has put the wild animal population _______ _______.

小题4:人类如果如此戏弄自然，可能将制造出一个现实生活中的弗兰肯斯坦怪物。

If mankind _______ _______ nature in this way, we may be on our way to producing a real-life Frankenstein’s monster.

小题5:难道我们为了保护自然就应该停止经济发展吗？

Would anyone say that development should be stopped _______ _______ of nature?