11.   I hope we can do business together, and look forward to hearing from you soon.

希望我们有合作机会，并静候您的佳音。

12.   I hope that we can cooperate happily.

希望我们合作愉快。

13.   I hope that we can continue our cooperation.

希望我们能继续合作。

14.   We sincerely hope that this transaction will turn out to the satisfaction of both parties.

我们真心地希望这次交易能使我们双方都能满意。

15.   We hope that this market trend will continue.

我方希望这种市场趋势能继续发展下去。