构词法：前缀与后缀 — 英语词汇题
题目
根据构词法知识，用所给单词的正确形式填空。1. He gave a brief ___ (introduce) of himself at the meeting. 2. Smoking is ___ (harm) to your health. 3. She showed great ___ (patient) with the children. 4. It is ___ (possible) to finish the work in one day; we need more time.