根据句意及汉语提示，写出各单词的正确形式。

1. Do you feel _________（孤独的）when you are alone at home?

2. In the short play, Laura played an important ___________（角色）.

3. The fans __________(鼓掌) and screamed when the famous singer appeared on the stage.

4. Do you want me to __________（订购） a cake for you?

5. Is Chinese used ____________(广泛) in the world?

把电阻一个个依次联结起来，使电流只有一条通路的联结形式，叫做电阻的_____。