As is well known, it is Hawking who the theory of black holes.A, puts forward B, has put forward C, invented D, raised
On bearing the news, he ____.
—_______. —That’s not all necessary. I’m al for it.
It is no use _____ such mistakes. You should learn a lesson from them.
Peasants earn their living by selling agriculture ____ in China.
It was a matter of _____ would take the position.