The patent application status is "case status:? The first trial is pending ",what do I need to do in this state?

The patent application status is "case status: preliminary examination pending"; The State Information Bureau should have sent you the Notice of Preliminary Examination Opinions. If you don't receive it, please search it. You should submit the revised reply to the State Information Bureau within the time limit specified in the notice of preliminary examination, otherwise it will be deemed as withdrawal.