While _______ an enquiry, you ought to enquire into quality specification and price etc.

The letter we send last is an enquiry ______ color TV sets.

Please _____ us for the _____ of the items listed on the enclosed enquiry form.

We look forward to ______ the goods next month.

We shall _______ you again, as soon as we resume offering.

We are making the following offer, subject ______ acceptance ______ us before April 20.

We accept your offer ________ black tea.

We make you the following offer subject to the goods _______.

Our offer _____ and remains good untill 12:00 A.M. July 12, 2003, Beijing Time.

__________ the uncertain economic climate our clients are adopting a conservative view and budget, which means a drastic reduction of order.