2020-2021学年河北省秦皇岛市驻操营中学高三英语下学期期末试卷含解析

2020-2021学年河北省秦皇岛市驻操营中学高三英语下学期期末试卷含解析一、 选择题1. It was in the lab ___was taken charge of by our teache