look at the blackboard回答

Look at the blackboard look at the blackboard,please. Please ( )(look) at the blackboard Look at the blackboard 改为否定句 Look at the blackboard.改为否定句（ ）（ ）look at the blackboard Now,look at the picture on the blackboard. you should look at the blackboard and _l________to the teach look at the blackboard,sam 改成否定句 look at the blackboard,please.改为否定句的答案 please look at the blackboard(改为同义句) They ----------(look )at the blackboard,but they couldn't -- please look at the blackboard and （）your books