wash--washed--washedclotheslisten-listened-listenedtomusichelp--helped--helpedMumcook--cooked--cookednoodleshave---hadhadapicnicgo--wentwenttherebybussee---sawsawsomebirdseat---ateatesomefoodsing---sangsangsongsbeautifulsangbeautifullybeautifully漂亮的,美丽的优美地,动听地唱歌唱得很动听dranksomedrinksdrinksdrink---drankhave--had--hadapicnicgo--went--wenttherebybussee--saw--sawsomebirdssing--sang--sangbeautifullyeat--ate--atesomefooddrink--drank--dranksomedrinksLet'splaygame:(说出下列动词的过去形式)see--sing--go--drink--eat--have--sawsangwentdrankatehadTheysawsomebirds.Theyatesomefood.Theydranksomedrinks.