After earthquake people were homeless.A. millions ofB. 5 hundred ofC. thousand ofD. ten t

问题补充：

After earthquake, people were homeless.

A. millions of

B. 5 hundred of

C. thousand of

D. ten thousands

答案：

(答案→)A. millions of

B. 5 hundred of

C. thousand of

D. ten thousands

解析：句意：地震之后，成千上万的人无家可归。hundred（百）、thousand（千）、million（百万）前有具体数字时，其后不加s，当它们表示概数时，要加s，并且其后跟of。故选A。