（一）非谓语动词 1.The grey building is where the workers live,and the white one is where the spare parts_____. a.are producing b.are produced c.produced d.being produced 2.Homework____on time will lead to better grades. a.done b.be done c.having done d.to have been done 3.It is not unusual for workers in that region____. a.to be paid more than a month late b.to be paid later than more a month c.to pay later than a month more d.to pay late more than a month 4.The speech ______ ，a lively discussion started. A) Being delivered B) was delivered G) be delivered D) having been delivered 5. ______ for my illness, I would have lent him a helping hand. A) Not being. B) Had it not been C) Without being D) Not having been 6. ______ a teacher in a university, it is necessary to have at least a master’s degree. A) To become B) Become C) One becomes D) On becoming