The 20th century many new means of communication like radios televisions telephones and

问题补充：

The 20th century many new means of communication，like radios, televisions, telephones and the Internet.

A. foresaw

B. inspected

C. scanned

D. witnessed

答案：

A. foresaw

B. inspected

C. scanned

(答案→)D. witnessed

解析：这题考查动词辨析：．Foresaw预见，inspected视察，scanned扫描，浏览。Witnessed见证，句意是：20世纪见证了很多新的信息方式，象广播，电视，电话和网络。选D。