LESSON 21 어법 순서 위치 문제
LESSON 21 어법·어휘 점검 : 1. 해석하며 빈칸을 채우고, 2. 선택형 문제: 맞는 것 O, 3. 번호 밑줄 맞으면 O, 틀리면 바르게 고치시오. 01. We learnt to cut wood and plough the earth once we ① had acquired the ability to attach a stone tip to a wooden handle. Wood was abundant, but rare flint was needed for the tip. In axes, raw and unrefined stone was replaced with flint in about 4000 BCE. [Finding / Found] all over Europe, flint axes and kni..