Past perfect is a little different. When we talk about two things in the past, we can use the past perfect for the first event. Put "had" before the past participle. "Pete had promised he would meet Anna." Here's your assignment: find sentences with the past perfect tense. Remember, look for "had!"
Other contents
Explaining why you are late
Leaving and taking messages
Grammar: Past perfect
“In Lesson 6, Anna and her friend Penelope are taking a tour in Washington, DC. They learn interesting facts about the places they see. In this lesson, you will learn how to share information and use prepositions of place like inside, through and between.”