单项选择题
We thank you for your letter of 12 June, （） you have opened the covering L/C.
A.in which B.from which C.informing D.informing us
单项选择题 We have arranged with the Bank of Japan, Tokyo, to （） a credit in your favor.
单项选择题 We would be most thankful if you could extend this favor to us and agree （） 50% by L/C and 50% by D/P at sight.
单项选择题 Our sewing machines （） fast, and there have been numerous enquiries about them.
