If it ________ for the heavy rain then, we would have arrived here ahead of time.
A computer is so useful a machine ________ we can use everywhere.
— Why didn’t you come to Mike’s birthday party yesterday? — Well, I ____, but I forgot it.
Mike, as far as I know, _______ like to play music.
The Indian Ocean tsunami at the end of 2004 is believed _____ more than 160,000 people and made millions homeless, _______ it perhaps the most destroying tsunami in history.
— Tod hadn’t passed the exam and was afraid of being scolded.— _____.