问题
选择题
He knows several languages, ______, he knows English and Japanese.
A．such as
B．for example
C．that is
D．for an example
答案
答案：B
题目分析：句意：他懂得好几种语言，比如他懂得英语和日语。such as 例如，不用逗号；that is也就是说。for an example不表例如，例如也可以用take…for example。故选B。