1 . The Great Wall was originally built in the Western Zhou period ________(defend) against the attack of the enemies. (所给词的适当形式填空)

2 . The soldier was determined ________ (defend) his country against any foreign invaders, no matter the cost. (用所给词的适当形式填空)

3 . The soldier ______(defence) himself from the attack and survived at last. (所给词的适当形式填空)

4 . All our officers are trained to_________ ( 防御) themselves against knife attacks. （根据汉语提示拼写单词）

5 . They help the body ________(defence) itself against some kinds of infections. (用所给词的适当形式填空)

6 . We must _____________（保卫）our motherland from the enemy. (根据汉语提示单词拼写)

7 . All the policemen have been trained to d________ themselves against the sudden attacks. (根据首字母单词拼写)

8 . The soldiers fought bravely to __________(保卫) their country. (根据汉语提示单词拼写)