把下面单词分别变成三单,ing形式,过去式,过去分词drop,happen,pass,receive,seem,smcke,throw,surprise,wait,push,include,freece,go,use,sweep,stop
问题描述：
把下面单词分别变成三单,ing形式,过去式,过去分词
drop,happen,pass,receive,seem,smcke,throw,surprise,wait,push,include,freece,go,use,sweep,stop
答
dropping dropped dropped
happening happened happened
,passing ,passed ,passed
receiving received received
seeming seemed seemed
smcking smcked smcked
throwing threw thrown
surprising surprised surprised
,waiting ,waited ,waited
,pushing ,pushed ,pushed
including included included
freecing freeced freeced
going went gone
using used used
sweeping swept swept
stoping stopped stopped
答
drop--drops--dropping--dropped--droppedhip--hips--hipping--hipped--hipped,happen--happens--happening--happened--happened,pass--passes--passing--passed--passed,receive--receives--receiving--received--r...