- Will you be available at three o'clock tomorrow afternoon? - No. I ______ a lecture then.
According to Lee, it was Ben’s carelessness that _______ the accident. But Ben _______ his wrong doing.
Even though they are not doubtful at all _______ John will pass the exam, I still wonder ______ he is fully prepared.
Tim is always lying, thus no one will believe _______ he says.
______ the scene, he couldn’t help thinking of the description in a book ____ by a British novelist.
________ many changes have _______, we should keep pace with the changes too.