Q: Does "key" have the same meaning in the following two sentences?

Some students had stolen the key to the final exam.

Some students cheated by using the answer key.

A: the same meaning

Q: Does "have" have the same meaning in the following two sentences?

Look what I have here -- a frog I found on the street!

He had a cold last week.

A: different meanings

Q: Does "come" have the same meaning in the following two sentences?

These shoes come in three colors.

He came through the door.

A:
different meanings