Ⅰ.单词拼写 1.They were also in (时常发生的) communication with people on the earth. 2.He has no (早先的) experience of this kind of work. 3.We hired a local to get us across the mountains. 4.She had a stressful job as a sales (代表). 5.Although he was badly ill，he was about his life. 6.She (转换) on the TV set as soon as she arrived home. 7.You’d better make some (调整) before handing in your paper.

constant

previous

guide

representative

optimistic

switched

adjustments