To ________information one would use letters of invitation; application; reply Question 18 options: supply enquire support

To determine the most appropriate word to fill in the blank in the sentence, we need to consider the context provided by the options and the sentence structure.

1. Understanding the Sentence Context

   • The sentence mentions "letters of invitation; application; reply" which typically involve communication where information is both requested and provided.

2. Analyzing the Options

   • Supply: This implies providing information.
   • Enquire: This implies asking for information.
   • Support: This suggests aiding or backing up information, but isn't specifically about the provision or request of information.

3. Choosing the Best Fit

   • Given the context of providing formal types of communication, "supply" is about giving information, while "enquire" is about seeking it. "Support" doesn’t quite fit.

Final Answer

The most suitable word to fill in the blank is supply. The complete sentence would read: "To supply information one would use letters of invitation; application; reply."