In which of the following sentences is all PUNCTUATION correct?

The doctor introduced… ................... to us.

All of your travel plans have been made. When you arrive, someone ...... for you at the airport.

Jane: Hey Lisa, ...... Kate lately? She’s lost a lot of weight. Lisa: I can’t wait to see her.

Is this the ring............ you found on the beach last night?

If Bob passes his final exam, he ............ with his family.