is known to all is that the Diaoyu Islands have belonged to China since ancient times.
This soldier __ jump into the water and saved the boy.
I want to buy a pair of new trousers to ___ my sweater.
There goes the bell for the class.Let’s stop___.
--Must we hand in our homework now?---No, you ___. You ___ hand them in before Friday.
When I was walking in the street, I heard my name ___.