19.Why! I have nothing to confess. _______ you want me to say?
Please call my secretary to arrange a meeting this afternoon,or________it is convenient to you.
He was so deep in thought,thinking of the problem ________ he knocked into the tree without noticing it.
________you’ve experienced it,you can’t understand how I felt.
________ you may have,you should gather your courage to face the challenge.
Paul was not allowed to work he was fully recovered from the flu.