Speaker A: Excuse me, do you need a hand?Speaker B: ______A.Oh, yes, please. I haven't use
Speaker A: Excuse me, do you need a hand? Speaker B: ______
A.Oh, yes, please. I haven't used one like this before.
B.No, thank you. I don't need another hand.
C.Sorry, do you know how to do this exercise?
D.of course. I need a hand.