“letter of confirmation”造句，怎麼用letter of confirmation造句

Stock exchanges shall handle relevant procedures upon the strength of the letter of confirmation issued by the CIRC department in charge of overseeing the management of insurance funds.

but we must write a letter of confirmation.

When a candidate applies for the examination, the test centre will issue a letter of confirmation to the candidate, informing him/her of all the necessary details about taking the examination.