Help the friendly alien complete his letter home about Earth by dragging the correct prepositions into the blanks.

Dear Mom,

Earth is strange! Humans travel long distances by train instead of using their own wings. In fact, they are very bad at flying without machines. To eat, they pick up food with a metal tool called a fork. I am reading a big book about their funny habits so I can fit in!

Love,
Zorg

Dear Mom,

Earth is strange! Humans travel long distances by train instead of using their own wings.

We use by to talk about general methods of transport (e.g., by train, by car, by bus) when there is no article (a/the) before the noun.

In fact, they are very bad at flying without machines.

The adjective "bad" (and "good") is followed by the preposition at when talking about skills or abilities.

To eat, they pick up food with a metal tool called a fork.

We use with to indicate the tool or instrument used to perform an action.

I am reading a big book about their funny habits so I can fit in!

We use about to introduce the subject or topic of a book, story, or conversation.