1. I really don't know what the matter is with Fred.
2. This is rather difficult. Can you explain me about it?
3. I don't understand what is he trying to tell me?
4. Can you show me what the signs on this map mean?
5. How is it that you cannot ever remember an appointment?
6. I see that Cassie is angry again. What is it now?
7. What is the meaning of all this?
8. Can you tell to me what happens when we have done this?