Look at the verbs in past form with -ed in the dialogue. Single-underline the ones with the ending sound /t/, double-underline the ones with the ending sound /d/, and triple-underline the ones with the endingsound /id/. Then act out the dialogue with a friend. (Nhìn vào các động từ ở dạng quá khứ với -ed trong cuộc đối thoại. Gạch chân đơn những cái có âm cuối /t/, gạch dưới đôi những cái có âm cuối /d/ và gạch chân ba những cái có âm cuối /id/. Sau đó, thực hiện cuộc đối thoại với một người bạn.)

Mark: ….. So, what did you do last weekend?

Lan: I joined my friends in doing some volunteer activities at my school.

Mark: What did you do?

Lan: We planted new trees and watered the vegetables in the school garden.

Mark: That's great. When did you start doing these activities?

Lan: We started these activities three years ago. How about you? What did you do?

Mark: Me? I stayed at home. My brother and I listened to some music and watched some movies.

Lan: That sounds interesting!

Mark: Yes. That was on Saturday. On Sunday, we played board games and enjoyed some food that mum cooked.