Hola, Yura! Espero que mi respuesta te ayude! :) Your first example is right. The second phrase should be "There's nothing, what did you expect?" And yes, the last example is correct and could mean both a) that the subject missed a date and b) that the subject missed some kind of business appointment or something.

Here's my take on your question. 34. I can't see anything over the wall. This sentence is correct. 35. There is nothing what u expected to be ? I'm confused. Are these two clauses one sentence? Or are they separate? If one sentence: There is nothing of what you expected to be. If separate sentences: There's nothing. What did you expect? 36. She missed a very important appointment. ( she missed a date , she is missing some requirement for a job … ? it can mean both ? ) Basically, "appointment" means "meeting." So yes, it can mean both. It depends on the context of the sentence, really. Hope this helps~!