Which word completes the sentence: 'Here is just a quick note to ___ you know that I might not be available for the daily stand-up tomorrow.'

• A. Make
• B. Let
• C. Tell
• D. Show

Answer: (B)

The main idea is using the natural phrase to inform someone about something. In this context, you want to convey that you’re informing the recipient about a possible absence, so “to let you know” is the idiomatic and polite choice. It signals the purpose of the note: sharing information the reader should be aware of. The other options don’t fit: “make you know” isn’t a natural English construction for informing someone; “tell you know” is ungrammatical here, since the standard form is either “tell you” or “let you know”; “show you know” would imply demonstrating knowledge rather than conveying notice. So the phrase that fits best is “let.”