问题：
[单选] We have to point out that the post ponement 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。atwhich。fromwhich。inwhich。
问题：
[单选] （），we are airmailing you our latest quotation-sheet.
A．As request。B．At request。C．As requested。D．At requested。
问题：
[单选] We are pleased to say that we are（）to supply you（）the goods you want.
of a position，──。at a position，──。in a position，with。at a position，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（）the seminar sponsored by you in September last year.
aware。aware of。are aware of。are aware。
问题：
[单选] We will consider（）your terms of payment.
accepted。to accept。accepting。accept。
问题：
[单选] We shall do everything possible to assist you in（）a mutually beneficial trade.
developing。developed。develop。development。
问题：
[单选] Everyone knows that China’s Bristles are of superior quality（）those from other countries.
with。to。for。than。
