.-- I saw Jane and her boyfriend in the park at eight yesterday evening. -- Impossible. She _____TV with me in my home then .
Explorer Robert Ballard searched the sunken ship---the Titanic for more than 20 years and also, with his cameras, he _____ the hole along the side of the ship which had caused it to fill with water and sink.
My friend Tom stays at Internet bars above 8 hours every day ______, really a netter(网虫).
I have many friends, _____ some are businessman.
____ is certain, though, is that the mystery of Tutankhamun’s tomb has never been fully explained.
Some time after the rockets and the space shuttle are _____, the rocket will _____ the space shuttle and ____ the sea.