the teacher made the boy_____the blackboard at once
Lingling,___(come) to the blackboard at once.
The teacher wants the work ( )at once
Look at the blackboard
the teacher r the sentence once.at last I understood
The teacher told me ____(correct) the mistakes at once.
look at the blackboard,please.
Please ( )(look) at the blackboard
she made the demand that she leave at once
You should look at the blackboard and I___to the teacher car
The impudent boy made faces at the teacher.
the teacher spoke slowly so that they_____their work at once
The workers were made to finish the work at once by the mang