LSPIII
A: Has he done the computer programme for our project? B: Yes, he has. Although I’m not sure how he did it.
A: It doesn’t matter how he did it. The important thing is whether the program has been done. B: I’m sure it’s been done.
LSP-IV
A: Do you think the picnic will be a success? B: Oh, I’m not sure. A: Why not?
B: It all depends on whether it will be fine or not on Sunday.
LSP-V
Wanda: Do you have daylight saving time every summer, Bob? Bob: Yes, of course. Why do you ask?
Wanda: I find it odd that you should set the clock one hour ahead in summer.
Bob: But I think it’s quite reasonable to do that.