The new printing machine ----- last week is of great help to

The new printing machine ----- last week is of great help to The new ______ machine is a great help in the production of The o____ of the new machine is hard to learn A new kind of machine is being developed to take the place o it is of great help to me. the last day of a week is () The last day of a week is While the internet is of great help. last week we went to visit the great wall the new discovery is bound to be of great service to mankind Will you ask _______ to help me with the new machine? 求New york is one of the last America cities to have some of