--- Are these pens your sister’s? --- No, _______ aren’t. They are _______ sister’s. A. they, Lily’s B. they, Lily C. these, Lily
About ______ of the books in our school library are written in Chinese.
The soldiers ___________ a good fight against the enemies.
One of the suspects is _________ schoolboy.
When I got to the cinema, the film ___________ for 15 minutes.
It is reported that the victim was attacked _______ a gun_______ a short, fat man.