I think it would be a good idea to ......... in your letter that you have worked in that type of business previously.

You need to improve the ......... of this letter because one or two things are in the wrong place.

Before you put the letter in the envelope, make sure you ......... it in the right way.

If you want this letter to reach the bank tomorrow, you have no choice but to send it by ......... mail.

When you are going to write an important letter like that, it is absolutely essential that you ......... all the facts first.

When you read something you've written on the computer screen, it often looks all right although you should always ......... read it first.

I advise you to check ......... with a letter or a phone call if you intend to pay them a visit in order to save a wasted journey.

Since that package contains valuable items, you must send it by ......... post.

Quite honestly I cannot trust this particular letter to be sent by post and so I am using the services of a ......... to deliver it for me.

I'm sure that computer program you use creates a very good letter design but it's far too ......... for me.