Uzupełnij luki w zdaniach odpowiednim przyimkiem.

1) Thank you for your interest …………..our products.
2) The goods are available …………….. stock.
3) Our products are selling well ………….. the domestic market.
4) We allow a discount ………………. bigger quantities.
5) We require payment ……………. 14 days …………….the date of the invoice.
6) All sizes are carried ……………… stock.
7) We are sending to you a full range of our samples ………….. separate post.
8) Please settle the payment............... 14 days of receipt ……..... order.
9) You can order ………… mail ………… any time.
10) Prices are subject …………… variation.