When studying regular verbs in past simple and past participle, the pronunciation of the ending -ed is very important, especially because it is essential to show a good pronunciation when you take your oral test. That is why I am including here a power point presentation that explains the pronunciation of verbs ending in -ed and also, some activities in a pdf document. The activities include the answer key at the end.
Practice a lot because this is very important.
Explanation: Click here
Activities: Click here