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sing a song
dance
perform magic tricks
play the guitar
1.play---- 2.do/does---
3.is------ 4.dance---
5.are----- 6.enjoy---
7.perform-- 8.like-----
9.ask------- 10.try-----
11.stop------ 12.die ---
13.worry--- 14.plant---
played
was
were
performed
asked
stopped
worried
planted
did
danced
enjoyed
liked
tried
died
动词过去式的规律:
① 一般情况+ed
② 以不发音的e结尾的+d
③ 以辅音字母+y结尾的, 变y为i+ed
④ 末尾只有一个辅音字母的重读闭音节词, 先双写辅音字母, 再加ed