JJ单词

peipei

Considerable----Important
文中:keep for considerable periods of time ,选项有Important和Long

considerable 相当多（大）的，值得考虑的，相当可观的

答案为什么不是long

peipei

exhibit (n. v. 展示，陈列)= feature (展出、公开 = emphasize， display, publicize, ) （句中选）

我觉得是  display

peipei

Given = particular 居然有special/particular两个选项,答案是particular, sure.
(given: adj.赠予的, 沉溺的, 特定的, 假设的)

special 也有特别的意思，为什么不是她

chipmunk

It's hard to tell you which one is right without the context. I'll suggest you to use English-English dictionary. If you translate it into Chinese, it's hard to understand sometimes.

peipei

thanks a lot!