单项选择题

（）a language family is a group of languages with a common origin and similar vocabulary, grammar, and sound system.

A．What linguists call
B．It is called by linguists
C．Linguists call it
D．What do linguists call

<上一题目录下一题>

热门试题

单项选择题If you think her experience is（）, we will employ her.

A．sustainable
B．adequate
C．strong
D．positive

单项选择题Orson accused the man （）the theft.

A．for
B．of
C．in
D．on