I was so lucky that I met ______ European man on Three Gorges Square yesterday, and we had ______ happy conversation.
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.