a) We have received with many thanks for your letter of Oct.7, and we take the pleasure of sending you latest catalog. We wish to draw your attention to a special offer, which we have made in it.
b) You will be particularly interested in a special offer on page 5 of the latest catalog enclosed, which you requested in your letter of Oct. 7.
Please, Will you…….., Will you please……..,如：
a) Will you give us more detailed information on your requirement?
b) Will you please (kindly) let us hear from you on these two points?
（二） 虚拟式（Past Subjunctive From）如：
a) Would you compare our sample with the goods of other firms?
b) We would ask you to ship the goods by the first available vessel.
c) We wish you would let us have your reply soon.
d) This would seem to confirm our opinion.
e) We should be grateful if you would help us with your suggestion.
f) We think if advisable that you should accept this offer at this price.
g) We should(would) like you to let us know the exact amount.
h) Perhaps you might like to have a look at the actual goods.
i) We might be of some service to you in a similar case.
以上的b, f, g, 也可用 will, shall, may, 但是用Past Subjunctive Form则表示更客气和婉转些。
为了缓和过分强调或刺激对方，常用:We are afraid, we would say, we may(or, might) say, we(would) think, it seems(or would seem) to us, we(would) suggest, as you are (or: may be) aware, as we need hardly point out等等表达法来缓和语气，如：
a) It was unwise of you to have done that.
We would say that it was unwise of you to have done that.
b) You ought to have done it.
It seems to us that you ought to have done it.
c) We cannot comply with your request.
We are afraid we cannot comply with your request.
d) Our products are the very best on the market.
We might say that our products are the very best on the market.
e) You must keep the matter to yourselves.
You must, we would add, keep the matter to yourselves.
f) You must cut off your order in half
We would suggest that you cut your order in half.
g) We have not yet had your reply.
It appears that we have not yet had your reply.
a) You made a very careless mistake.
A very careless mistake was made
b) You did not enclose the check with your order.
The check was not enclosed with your order.
c) For the past two years, you did not give us any order.
For the past two years, no order has been given us. Or:
For the past two years, no business has been materialized between us.
a) we demand immediate payment from you
demand的意思是ask for(sth) as if ordering, or as if one has a right to, 即带有命令意味的要求。应尽可能避免使用demand而改用request如：
We request your immediate payment.
b) We are disgusted with your manner of doing business.
disguste意味hate而且有strong feeling of dislike or distasted, 既“厌恶”的意思， 因此，还是婉转或含蓄一些为宜，如：
We are not completely satisfied with your manner of doing business.
c) We must refuse your offer.
We regret that we are unable to accept your offer.
Or: We regret that we are not in a position to accept your offer.
d) We want you to assist us
Your assistance would be appreciated.
(1)、 We have pleasure of -ing…….
We have pleasure in -ing…….
It is with pleasure that we do so
It gives us(great, much) pleasure to do so
We are pleased for us to do so
It''s a pleasure for us to do so.
We are glad(or: delighted) that you do so
We shall gladly do so
We shall feel happy if you will do so
We are happy to do so
We are (very, most) appreciative of your doing so
We are gratified to learn that you do so
We shall be (or: feel) obliged by your doing so
We shall be obliged if you will do so
You will oblige us by doing so
We shall be grateful to you if you will do so
We shall appreciate your doing so
We shall appreciate it if you will do so
We shall thank you to do so
It will be appreciated if…….
We are thankful that you do so
It is a matter for regret that we cannot do so
It is with regret that we must do so
We express our regret at -ing…..
To our regret we cannot do so
It is regrettable that we must do so
We regret that we cannot do so
We regret to do so
It is to be regretted that you do so
We are regretful that we must do so
It is a pity that you cannot do so
We are sorry we cannot do so
We are sorry to do so
our esteemed clients;
your esteemed letter;
your respectable house;
your good self(or good selves);
your valued order;
your esteemed reply等等
(a) We are extremely and sincerely sorry for the error and ask that you accept our humble and sincere apology for the undue inconvenience suffered by you.
(b)We beg to acknowledge receipt of your letter dated 11th December.
(c) We beg to enclose herewith our invoice.
(a) We are concerned about the inconvenience you have suffered, and apologize sincerely.
(b) We have received your letter od Dec. 11.
(c) We enclose(herewith) our Invoice.
Or: We are pleased to enclose our Invoice.