1. You didnt have to invite all those people out for lunch, so why ____?
2. If we are to prevent the flow of toxic materials into the water reservoirs of the country, there is no other possible scheme available, ____ ?
3. I have to admit I found his argument most disturbing, _____ ?
4. I suspect the most interesting developments in space exploration have been the most recent ones, ____ ?
5. Under the present circumstances we dont have to take the case to the court ____ ?
6. The minister said to his under-secretary: You will check that all the details are correct, ____ ?
7. As far as I remember, it was in China that they first met and got interested in the dam project, ____?
8. Until people realize that they have to develop new skills, theres no way the economy can improve, ----?