seem to do 还是 seem doing?

seem to do 正确
例如:
1.She seems to do these things on purpose.她似乎是有意地做这些事.
2.She took me on as her personal assistant but all I seem to do is fetch and carry for her.她雇佣我为她的私人助理,但我似乎要做的一切是替她打杂.