A country must always be __________guard against spies and invaders.

Directions: For this part， you are allowed 30 minutes to write a composition on the topic "A Friend to Remember". You should write at least 120 words， and base your composition on the outline given in Chinese below:

1．简要地介绍你的一位朋友；

2．你怀念他／她的原因。

王教授，请您赏光来参加我们星期六的英语晚会好吗?

中国是一个社会主义国家，也是一个发展中国家。

——你们班谁最年轻?

——小李，他还是班上最优秀的学生。

人的学习能力似乎是无限的。

约翰宣称在他找到一份满意工作之前绝不结婚。

Natural foods， for example， are vegetables， fruit and grain which have been grown in soil that is rich in organic （ 有机的 ） matter. （ Passage 3 ）

Perhaps he made sounds like those he heard all round him——water splashing， bees humming， a stone failing to the ground. （Passage 2 ）

Courage was needed， for the heavy sails had to be set and taken down in all kinds of weather， and quite often sailors were swept overboard in a gale. （Passage 2 ）

Apart from requiring medical and social services， which do not directly contribute to economic growth， the society should also value and enjoy literature， music and the arts. （Passage 2）