单项选择题

To prevent a repetition of this dreadful occurrence, we must discover the ______ element in the food that was served.

A．unknown
B．toxic
C．kind
D．shameful
<上一题 目录 下一题>
热门 试题

单项选择题
The game had to be ______ because of crowd trouble.
A．vanished
B．abandoned
C．scattered
D．rejected
单项选择题
He was chosen leader by general ______.
A．compromise
B．command
C．consent
D．conviction
相关试题