If more readers become comfortable with reading digitally, _______ but the book-collectors will want to buy paper books.
The fire made _____ difficult to rescue the people trapped under the ruins in the earthquake.
The mother waved to her daughter until the train .
He hurried to the station only that the train had left.
It was Asimov was eleven years old his talent for writing became obvious.
We were having lunch when the clock ___________ twelve.