Add the appropriate preposition to the following sentence:

We were glad ________ rest after our long journey.

to

The correct answer is Option (3) - to

The correct answer is:

"to" → "We were glad to rest after our long journey."

• The phrase "glad to" is commonly used when expressing happiness or relief about an action.
• "Glad to + verb" is the correct grammatical structure (e.g., "glad to help," "glad to see you").