23. Often he _________ sit for hours doing nothing at all when he was in low spirits.
He has impressed his employers considerably and _____ he is soon to be promoted.
On this happy occasion, I'd like to say that we are _____ much obliged to you for your kind cooperation.
His new appointment takes _____ from the beginning of next month.
He is a very honest official and never _____ any gifts from the people who sought his help.