Most of us found _____ difficult to finish the work in such a short time.A this B which C what D it
Now I come here at the ______ of Mr.Smith to assist him finishing the work.
He left ______ with my secretary that he would call again in the afternoon.He said he would keep ______.
I sat until after eleven,______in a book.
The workers will go on strike if the demands they ______ put forward are turned down.
The small grocer was at the ______ of the people he owed money to.