He studied medicine_________.
to help people.
Help! My room is infested with ants. I don't know_______ to do!
what
This city is so expensive. I don't know______ to live.
where
I study English________.
to communicate with others.
I have so many ingredients, but I don't know_______ to make!
what
I went to the pool_______.
to swim
Do you know________to do if you are stung by a bee?
what
Help me decide_______ to go on vacation.
where
I need to go to the bakery__________.
to buy some bread.
I woke up early today_________.
to go to work
I want to marry my girlfriend, but I'm not sure_______to propose.
how
My husband and I are so busy these days. We don't know_______to celebrate our anniversary.
when / where
I want to speak better English, but I don't know_______to do that.
how