Choose the past perfect or the past simple. 10. Julie was very pleased to see that John (clean) the kitchen.

{ "answer": "10. Julie was very pleased to see that John **had cleaned** the kitchen.

**Explanation:**
* 'Was pleased' is in the past simple. Julie was pleased *because* John had already cleaned the kitchen. So, the action of cleaning happened before Julie was pleased. That means we use the past perfect ('had cleaned')." }