1. I want to get a score of 750 or above on that test/exam. ※thatの後の単語は確認できません
2. ①My English teacher recommended my reading English books.
②My teacher recommended that I (should) read(動詞・原形) English books.
3. I have decided to read at least three English books a month.
4. I regret not studying English hard in junior high schoo. ※regret ~ing ~したことを後悔する
参考にしてください。