The old man lived alone all his life and he _________ a rainy winter evening.
Vienna,the capital of Austria,isthe River Danube and The Blue Danube isStrauss.
Where's Tom? His mother ______ him now.
You will find ______ useful to learn even a little English.
By the first day of August, 2007, the PLA ________ for eighty years.
Have you ever gone?