正确答案: C

from which

题目：We have received your letter of September 12，（）we are glad to know that you are interested in our electric heaters.

查看原题 查看所有试题

学习资料的答案和解析：

[单选题]We have to point out that the post ponement of the fulfilment of the contract（）caused us certain expenses.

has

[单选题]After inspection of the above shipment we found 5 cases（）.

missing

[单选题]Please see that suchan（）does not occur again.

oversight