is subject to do 还是to doing?
is committed to do 还是to doing
my job is to do 还是doing
it is fun to do 还是 doing?
It is an effective method to do还是to doing?
It is an effective approach to do还是to doing?
is difficult to do sth .还是to doing
Should to do还是doing
plan to do 还是doing
attend to do 还是doing?
remember+doing 还是+to do
refuse to do还是doing
to+什么 doing 还是do