Last term our maths teacher set so difficult an examination

Last term our maths teacher set so difficult an examination Last week our maths teacher set so difficult an examination last week our english teacher set so difficult an examiation The teacher set so difficult an examination problem( )none o our teacher set us such a difficult maths problem we couldn' Yesterday our chemistry teacher teacher asked so difficult a Mr.Wang will be our maths teacher next term (变同义句) Yesterday our chemistry teacher asked so difficult a questio our teacher told us that he _（give）an examination the next f Our teacher set us such a difficult math problem _we couldn' 虚拟语气选择题.Our former maths teacher moved to Beijing last year, i failed in the examination last term and only___the importa