Stifling a huge yawn petra (pull) herself up into a sitting position and (try) to free her mind from the clog of sleep. slowly she (become) aware thft sara (pull) her suitcase from under the bed and (fill) it by the simple method of taking out drawers of clothes and turning them upside down so that the contents (fall) into the case.

Stifling a huge yawn Petra pulled  herself up into a sitting position and tried  to free her mind from the clog of sleep. Slowly she became aware that Sara had pulled her suitcase from under the bed and was filling it by the simple method of taking out drawers of clothes and turning them upside down so that the contents fell  into the case.