--- What are you talking about?--- We are discussing ________.
Tens years ago, there _____ full of fish in the lake .Now there are _____ fish .
The doctor did what he could _____the dying man.
-How many workers are there in your factory? -______ the workers in my factory_______ over two thousand .
---I’m too busy________ to my family often. --- Why not call them instead ?
Everyone is in the classroom, _____?