This basic core grammar handout is designed to make readers grasp the essential grammar on the shortest time and train themselves by the four concise exercises and practical. The reader can get the most knowledge feedback with least time and monetary investment. This grammar handout belongs to a series of Ahkuei̕ s English learning books（阿貴叢書）. 本書為「阿貴叢書」系列，本書旨在讓讀者在最短的時間內掌握最重要的文法重點，並透過四種精簡且實用的練習進行自我訓練。期望讀者能以最少的時間與金錢投入，獲得最大的學習回饋。
