女，23岁，与父母激烈争吵后突然精神失常，时哭时笑，问她："你多大岁数？"答："3岁，"问："你在何处工作?"答："我是幼儿园乖宝宝。"此症状是（）

A.自知力缺乏

B.假性痴呆

C.后天性痴呆

D.错构

E.虚构

用所给词的适当形式填空。

1. We are very _________ (surprise) at the news.

2. Several _________ (foreign) visited our school yesterday.

3. Doctors often tell us _________ (drink) more water every day.

4. The boss left his office _________ (angry) without saying a word.

5. We will have the meeting on the _________ (twelve) floor.