practice是以e结尾的动词,通常去e加ing,所以practice的ing形式是practicing
![](https://pic9.jiangzi.com/20190524/2a30a835f761ba216c498629c2cce0b9.jpg)
一般情况下,直接在动词后加-ing work ---- working sleep ----- sleeping study ----- studying
![](https://pic9.jiangzi.com/20190524/3b0a47b29a328662a50a1910b6a33275.jpg)
动词以不发音的-e结尾,要去-e加-ing take ----- taking make ----- making dance ----- dancing
![](https://pic9.jiangzi.com/20190524/126df4d292483429e6841dd2fa599819.jpg)
重读闭音节的动词,要双写词尾字母,再加-ing cut ----- cutting put ----- putting begin ------ beginning 以-ie结尾的动词,把变成y再加-ing lie ----- lying tie ----- tying die ----- dying
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