谁帮我翻译这三个句子？

1here are two people. which is our customer?
2 who will pay that expenditure?
3 i have taken back the given things.

1) It has two people, to find out which are our customers?
(2) Who will bear the cost?
(3) I have to reclaim their goods by the hair.

(1) this have two persons, actually which is ours customer?
(2) who will undertake this expenses?
(3) I have got to return to a hair product