Choose the suitable words to complete the sentences.

Choose the correct option.

You should normally show your passport and boarding pass when checking [up|in|out|off|on|for].

The doctor advised to have a full-body check-[up|in|out|off|on|for].

Chris is absent from school today; we might go check [up|in|out|off|on|for] him.

Don't forget to pay for your stay when you check [up|in|out|off|on|for] of the hotel.