1. When Mark arrived, the Johnsons was having dinner, but they stopped in order to talk to him
2. That is the third cake you have eaten this morning
3. All the food served in this restaurant was excellent.
4. The United Nations play important part in preserving peace for the world.
5. The test was so difficult that none of us could do it successfully.
6. Either you or your brother will be choose tomorrow.
7. Both Tom and Mary make mistake yesterday.
8. The police was here for security yesterday.
9. Never have Maria seen such a beautiful house.
10. Neither you nor I was here last night.