My friends and I ........ (not clean up) the local park last weekend

2 - didn't clean up

3 - volunteered - helped

4 - donated

5 - Did they organize

2. My friends and I didn't clean up the local park last weekend

3. Last summer, my brother volunteered at the local food kitchen. He helped prepare food and do the dishes

4. We donated the sweaters, scarves and socks to poor children last winter

5. Did they organize a fun run last month?

Xem lý thuyết và bài tập thì quá khứ đơn tại https://vndoc.com/bai-tap-thi-qua-khu-don-tieng-anh-85221