—Is this your brother?[—______.
A: ?B:R—U—L—E—R.
A:Are your books in the bookcase?B: . They’re on the desk.
— You didn’t sleep well last night, did you? — , so I feel tired now.
— I’ve never been to the Great Wall, what about you? — ______. I think it must be very great.
If I ______ five minutes, I will get everything ready.