The purpose() this letter is to explore the possibilities of developing trade with you.
A、on
B、of
C、to
D、at

单项选择题The packing of goods offered does not meet our standards. Could you use packing which is secure ()breakage?

单项选择题()destination, we regret to advise that Oslo is unacceptable as direct sailings from ourport.A、AboutB、As toC、AsD、For