问题
选择题
_____ time, animals have developed many ways to stay away from their enemies.[ ]
A. Through
B. On
C. By
D. Over
答案
答案：D
搜题请搜索小程序“爱下问搜题”
_____ time, animals have developed many ways to stay away from their enemies.[ ]
A. Through
B. On
C. By
D. Over
答案：D