单句语法填空
【小题1】They had been brought in to clean ________________ a mess, and they did their job well.
【小题2】Though she’d lost her job, she saved face by saying she’d left it ________________(wiling).
【小题3】It is ________________ shame that the heavy rain spoiled our picnic.
【小题4】What my first teacher said at that moment left a deep ________________(impress)on me.
【小题5】________________ his graduation from university, he was employed as the sales manager of the company.
【小题6】He injured his hand while ________________(operate)one of the machine tools in the workshop.