Fill in the preposition: by, for, at, with.

the train from london has arrived platform 5.
we recommend you to travel bus. ann likes to walk her friend.
health insurance is important travelers.
do you need a travel guide going abroad?

The train from London has arrived at platform 5.

We recommend you to travel by bus.

Ann likes to walk with her friend.

Health insurance is important for
travelers.

Do you need a travel guide for going abroad?