TheLushanEarthquaketookplace

问题详情：

 The Lushan Earthquake took place ________ about 8 o’clock ________ April 20, when the children are just beginning their first lessons.

   A. at; in            B. at; on           C. in; on           D. from; to

【回答】

B

知识点：介词和介词短语

题型：选择题