please look the blackboard填一介词

please look the blackboard填一介词 please look ----- the blackboard. Look () the picture on the blackboard.()里面填介词, look at the blackboard,please. Please ( )(look) at the blackboard 改错:Please look the blackboard. 用适当的介词填空1.Please look _____ the blackboard.Don't listen ____ 第三题：Children,please look the blackboard. Please look ()the picture of paper.(填介词） please look the blackboard这句话哪儿错了 look at the blackboard,please.改为否定句的答案 please look at the blackboard(改为同义句)