问题：
[单选] We have to point out that the postponement of the fulfilment of the contract（）caused us certain expenses.
had。have。has。having。
问题：
[单选] We are（）to have your enquiry for Sewing Machines.
please。pleased。pleasure。in pleasure。
问题：
[单选] We have received your letter of September 12，（）we are glad to know that you are interested in our electric heaters.
which。at which。from which。in which。
问题：
[单选] （），we are airmailing you our latest quotation-sheet.
As request。At request。As requested。At requested。
问题：
[单选] We are pleased to say that weare（）to supply you（）the goods you want.
of aposition，──。at aposition，──。in aposition，with。at aposition，with。
问题：
[单选] One of our clients is（）the market（）Men’s Shirts.
on，of。at，with。in，for。with，at。
问题：
[单选] We（）some brochures（）to illustrate the types of materials we manufacture.
enclose，。enclose，you。enclose，to you。enclose you，。
问题：
[单选] The consignment certainly does not match the samples（）you sent us last month.
these。-。what。when。
问题：
[单选] It should be（）if you could immediately（）what quantity you can supply us at present.
thankful，advise。appreciate，advise。appreciated，advise。appreciating，inform。
问题：
[单选] We（）your letter of Nov. 3 asking us to make a quotation.
goover。haveread。referto。checkup。
