Hello Ayham,
Just a quick couple of corrections to the exam above:
1- During the last hundrad years, we.
2- There is a large chemical factory
3- for delaying measures which will
4- There are a lot of things we can do
5- In the Multiple Choice questions, the last answer should be "None of the Above" instead of No One
Aside from that, I think it's a good idea to have such tests for those who want to evaluate their level of english. However, I do feel that small discussion about specific topics can yield more benefit. One way to do that is by introducing a topic and providing a short list of common vocabulary related to that topic prior to the start of the discussion.