I don’t know _________ the problem.

Although the play had already been on for 10 minutes, I was still unable to find a seat ___________.

The music in Voice of China sounds very_ _. I enjoy it very much.

The number of students in our school 4000and a number of themgood at playing pingpong.

What’s on TV tonight— There _______ a good progamme called Across the Sea to See You (漂洋过海来看你) on Zhejiang Satellite TV.