I can’t play the piano, and _______.

I think this is ______ useful book.

Look! The students are playing on the playground. Some are running, some are playing basketball, ________ are watching.

Vienna, the capital of Austria, is _____ the River Danube and The Blue Danube is _____ Strauss.[ ]

Where is Jack? I haven’t seen him for a long time.—He ______ HK with his family. I think he is having a wonderful time there.