2. 外语
  3. It is the duty of every citizen to defend his country when it (attack) ______ by the enemy.

It is the duty of every citizen to defend his country when it (attack) ______ by the enemy.

admin2009-06-28  40
问题 It is the duty of every citizen to defend his country when it (attack) ______ by the enemy.
选项
答案is attacked
解析 本题中attack和one’s country之间是被动关系，应该填入动词的被动语态；因为主句使用了一般现在时，从句应使用同样的时态。故is attacked为正确答案。
转载请注明原文地址:https://www.kaotiyun.com/show/AYwK777K
本试题收录于： 大学英语三级B级题库大学英语三级分类
0

大学英语三级B级

大学英语三级

相关试题推荐
随机试题
最新回复(0)