We thank you for your letter of May 5,_____ your purchase from us of 200 metric tons of peanuts. 
A、confirm
B、to confirm
C、confirming
D、confirmed
We thank you for your letter of May 5,_____ your purchase fr - 第五章:订单与合同 - 外经贸英语函电 - U校园 | 大学网课搜题引擎