Mrs.Smith finds it hard to clear up the mess, as her children are always ________ whenever she tries to.
This is the _____ piano on which the composer created some of his greatest works.
Mr. Smith gradually _____ a knowledge of the subject.
The policeman stopped him when he was driving home and _____ him of speeding.
His new appointment takes _____ from the beginning of next month.
On this happy occasion, I'd like to say that we are _____ much obliged to you for your kind cooperation.