Unit 1Part 1ⅠBCCBAC BCCC ⅡDCDDB BCDDA CACDB he was good at writing.he wanted to relax.a cyclist ran into him.he was sorry.他跳下自行车帮助肖先生站起来.Part 2ⅠDACBD ADACA ⅡCCDAC DACCB CABBD DDBCC P...