by sb引導什么從句

　　例句：

　　It is a good thing that English can be spoken (by sb.)

　　這是一件好事- - -英語可以被(某人)說。

　　Now you are talking: used to express interest or approval on what was just mentioned by sb.

　　用以表達對剛才對方的話表示興趣或贊同。

　　Schwarzenegger signed the bill, SB-54 by Senator Mark Leno (D), on Sunday, his office said.

　　其辦公室稱，施瓦辛格周日在參議員馬克·萊諾(D)簽署的 SB-54 法案上簽字。