look at the blackboard,sam 改成否定句

look at the blackboard,sam 改成否定句 Look at the blackboard 改为否定句 Look at the blackboard.改为否定句（ ）（ ）look at the blackboard look at the blackboard,please.改为否定句的答案 Look at the blackboard look at the blackboard,please. Please ( )(look) at the blackboard the boys are looking at the blackboard改为否定句. please look at the blackboard(改为同义句) the please blackboard look at连词成句 Stop looking at the blackboard改为否定句 Look at themap first改成否定句 How is the weather in spring in ha