The earthquake killed .people .A. thousandB. three thousandsC. thousands ofD. three thous

问题补充：

The earthquake killed .people .

A. thousand

B. three thousands

C. thousands of

D. three thousands of .

答案：

A. thousand

B. three thousands

(答案→)C. thousands of

D. three thousands of .

解析：句意:地震中死了成千上万的人。thousand 千，是一个数词。跟数词连用时，没有复数形式，故B和Ｄ不对；thousands of 是一个固定短语，意思是成千上万的。故选C。