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like. Does anybody else want to read the book? P67 37. up to (時(shí)間 / 數(shù)目 上的 ) 直到 Up to his tenth birthday, the boy went to school. The room can take up to 20 men. 38. at a time 一次 . 每次 39. small 少 large 多 表示數(shù)目 The number of population is larger and larger. 40. adjer + and + adjer 越來越 … .. more and more + adj. 41. keep doing sth.== go on doing sth. 一直不停做某事 Keep passing the ball to each other, and you will win the game. 42. maybe adv. may be Maybe he is a student.== He may be a student. P68 43 walk upright 直立行走 P69 44. the test paper 試卷 45. frightened 害怕 修飾人 frightening 令人害怕 修飾物 What made you so frightened. It is a very frightening snack