根据对话内容，从对话后的选项中选出能填入空白处的最佳选项，选项中有两项多余选项。
—He is very good, isn’t he?
— 1
—I said the singer was great.
— 2
—Have you seen him here before?
— 3 I think he probably writes the music and words because I’ve never heard any of the songs before.
—It’s not fair.
— 4
—People with musical ability like that have to stand around here to make a living.
—Perhaps he enjoys it or makes more money than you think.
— 5
A．What do you mean?
B．Sorry, what did you say?
C．I hope so.
D．Do you like popular music?E. Be quiet, listen to him.
F. Yes and interesting to watch.
G. Oh, yes. He’s always at exactly the same place on Saturdays when I come into town.
串联在电路中，如图所示，闭合开关后，发现灯
较亮，灯
较暗，其原因是 
额定功率较大
两端电压较大
的电阻较大