单项选择题

Radios today seldom need （）or the attention of a technician.

A．to repair
B．repaired
C．repairing
D．to have repaired

<上一题 目录 下一题>
热门 试题

单项选择题
You should use （）and natural language when you write a personal letter.

A．formal
B．political
C．magic
D．plain
单项选择题
It （）commonplace to think of sport as a leisure industry now.

A．became
B．will become
C．is becoming
D．had become
相关试题