一般现在时、现在进行时写出下列动词的第3人称单数、和现在分词形式1.skate____ ____2.buy.____ _

skates skating
buys buying
washes washing
has having
does doing
studys studying
watches watching
swims swimming
runs running
eats eating

1.skates,skating
2.buys,buying
3.washes,washing
4.has,having
5.does,doing
6.studies,studying
7.watches,watching
8.swims,swimming
9.runs,running
10.eats,eating

1.skate_skates___ _skating___
2.buy.__buys__ __buying__
3.wash _washes___ _washing___
4.have_has___ __having__
5.do _does___ _doing___
6.study _studies___ __studying__
7.watch __-es__ __-ing__
8.swim _swims___ __swimming__
9.run runs____ running____
10.eat _-s___ __-ing__