问题：
[单选] Pleases end us the amendment（）L/C immediately or we shall not be able to ship your order on time.
of。to。asto。with。
问题：
[单选] As the goods are（）great demand we regret being unable to cover your requirements.
in。on。of。having。
问题：
[单选] Our company has 30years’ experience（）the machinery line.
on。in。about。of。
问题：
[单选] We regret to report that a consignment of silk piece goods（）Order No.567 has not been delivered．
with。for。on。under。
问题：
[单选] （）your Enquiry No.123，we are sending you a catalog and a sample book for your reference.
According。Asper。As。About。
问题：
[单选] We are sending you the samples（）requested．
be。are。as。for。
问题：
[单选] We would like to take this（）to establish business relations with you.
opening。opportunity。step。advantage。
问题：
[单选] Documentary Collection is to be made with the documents to be（）to the draft.
enclosed。attached。together。alongwith。
问题：
[单选] We will instruct our bank to issue an L/C（）favor of your company.
on。for。with。in。
问题：
[单选] We have in structed the bank to（）the amendment you ask for.
perform。fulfill。effect。do。
