A firm offer______a time limit for acceptance.

Because of a brisk demand for the goods, this offer will be valid only for 3 days.

We look forward to receiving your confirmation at an early date.

If you know anybody who might be interested in our products, please let us know. We will be happy to send samples.

请向我方报中国红茶的实盘。

我方报盘如下，以10天内回复我方有效。

You are cordially invited to take advantage of this attractive offer.

We are now in the market for substantial quantity of Chinese black tea. Please quote your rock bottom price.

We will send you a firm offer with shipment available in the early March if your order reaches us before January 16th.

如果能早日收到贵方有关电视机的实盘，我方将不胜感激。