.As you can see, we need the equipments, ___________ are necessary to make the project move on.
There is a subway in my hometown, but ________ existed two years ago.
I prefer a house in beautiful surroundings in the countryside to ________ in such a noisy street in Shanghai.
He is so young and short a man that I think he is ________ but a professor of Northwest University.
They have done much of the work; when will ________ be finished?
Mum, I need a new schoolbag. Could you buy ________ for me tomorrow?