请把下类动词改成第三人称单数形式,work read clean write teach wash guess watch study fly cry fry have

问题描述:

请把下类动词改成第三人称单数形式,
work read clean write teach wash guess watch study fly cry fry have

works
reads
cleans
writes
teaches
washed
guesses
watches
studies
flies
cries
fries
has