填空题


【参考答案】

are→aren’t
<上一题 目录 下一题>
热门 试题

单项选择题
In the United Kingdom, police officers are not allowed to join ______ or to go on strike.
A．a trade union
B．a choir
C．a political party
D．a club
单项选择题
In the word unpredictable , pre- is a ______.
A．free morpheme
B．bound morpheme
C．inflectional morpheme
D．stem
相关试题