—What happened to Jackson?

—He________because of his drink-driving.

A．is caught

B．was caught

C．has caught

D．will be caught

计算机的基本构成是( )。

A．主机、存储器、输出设备

B．主机、输入设备、显示器

C．运算器、控制器、存储器、输入和输出设备

D．主机、键盘、打印机