小题1:You had better brush your t________ twice a day．

小题2:You can i_______`your English if you study hard．

小题3:The good news s________ very fast．We all know it now．

小题4:Walking is a good exercise and it is n__________ for your health．

小题5:The classroom is so noisy that we can't hear the teacher c______________．

自动换刀的动作由_____指令执行，用T功能来选择所需的刀具。

A、T22

B、T0202

C、T0203

D、M06