根据句意，用所给词的适当形式填空。

1. He found many people ______________ (dance) there.

2. My idea is quite different from ____________ (she).

3. Pop music is ____________ (live) and good to dance to.

4. Sally is a classical ___________ (music).

5. The _____________ (translate) of English is very difficult to me.

纯电阻在交流电路中，电压与电流的相位关系是（）的。