John isn’t here right now. He ______ Mr. Black’s office. Perhaps he______ in several minutes.

___________ caused the accident is still a complete mystery.

Oh， I lost my wallet with my ID card in it!— ________.

We’ve just moved into abigger house and there’s a lot to do Let’s _________ it

.Your luggage will be ___ by the lorry from the airport to your hotel.