Question

7. (2013广东深圳，8,*々々）一_April 20 this year, a

terrible earthquake hit Ya'an, Sichuan Province.

―We are all sonv for that. It is reported that _

houses were destroyed.

A.On;thousands of B.On ； tliousand of

C.ln;thousands of I).In;thousand of

Answer 1

 A表示不确定数目"数以千计的"，用thousands of ；表示在具 体的某一天，用介词on。