1.Last year/ brother/ work/ engineer/ printing factory.
=> Last year, my brother worked as an engineer in the printing factory.
2.what/ wide/ the West Lake?
=> What is the width of the West Lake?
3.walking/ fun/ easy and inexpensive activity.
=> Walking for fun is an easy and inexpensive activity.
4.Most/ world's surface/ water.
=> Most of the world's surface is water.
5.video games/ good fun/ but players/ must/ careful.
=> Video games are good fun but players must be careful.