试题题干
Translate the following sentence into Chinese.
It proved very effective in controlling insect pests like the potato beetle and the boll weevil.
参考答案
试题解析
考点：potato beetle 马铃薯甲虫；boll weevil 棉铃象鼻虫。
句子结构：句子主干为It proved effective，in controlling···为状语。