We thank you for your letter of May 5th, __ your purchase from us of 5,000 tons Green Beans.

Question

We thank you for your letter of May 5th, __ your purchase from us of 5,000 tons Green Beans.
选项:
a、confirm
b、 to confirm
c、 confirming
d、 confirmed
单选

Answer 1

选C。分词在这个句型中表示结果或原因，它的主语与主句主语一致。

Answer 2

c 做定语，限定letter，表示主动本回答被提问者采纳

Answer 3

D

Answer 4

b