Identify the sentence with the incorrect use of compound adjectives.I love reading well-written books.

I love reading well-written books.

The teacher gave us a lot of hard to solve problems.

The new employee was very full-of-energy.

The hotel room was new and decorated.

Incorrect use of compound adjectives The teacher gave us a lot of hard to solve problems.

Explanation: A compound adjective should be hyphenated when it precedes the noun: "hard-to-solve problems." Correct: The teacher gave us a lot of hard-to-solve problems.