Is the use of the PP correct in these cases:
-I had to make a choice and that's it, I've made it! (before announcing it) OK
-We've had many problems, again! OK
-What kind of nice party have you prepared for her? (this is at the very very beginning of the party).OK, the "nice" is not very natural though.[/COLOR]
-I've had many problems that's why I didn't check my emails. (Is the sequence of tenses correct, here?). It's fine.
-I've had many problems that's why I haven't had time to check my emails (could we say "didn't have time"?). You could but it would have a different meaning.
-I've created my own company! [OK
-oh, you've changed the colour of your living-room!! (could we also use the Past Simple in this case?) Yes, you could.
-That's it, I've signed the contract! (putting the pen down).OK
-I've booked two rooms. (before going to that hotel). Could we also use the Past Simple in this case? Yes, you could.
Thanks a lot
Student or Learner