This hospital needs ____X-ray machine, _____ machine is used for checking for patients.
He is taking ______ now.
They are having _______ dinner at home.
----How are you going, buddy? ----________. A little busy, though.
Scientists from different countries are trying to_______ a good way to solve the energy problem.
— Have you finished writing your book? — Yes. It _______ and _______ soon.