The building is now a supermarket. It ____ a cinema.
By the first day of August, 2007, the PLA has its ______ birthday.
一Is the girl ______ is interviewing the manager of that company your friend? 一Yes , she is a journalist from CCTV.
Don’t be afraid of asking for information ______it is needed.
I want to know ______ do to help my neighbour.
It’s important ______ the piano well.