In the last decade, Chicago public schools teaching of Chinese to serve 12,000 students.A

发布时间：2020-08-17 02:23:58

In the last decade, Chicago public schools      teaching of Chinese to serve 12,000 students.
A. are expanding
B. have expanded
C. expanded
D. expand

网友回答

A. are expanding
(答案→)B. have expanded
C. expanded
D. expand
解析：考查时态：如果时间状语是：in/during the last/past few +名词，谓语应该是现在完成时，句意：在过去的十年中，芝加哥公共学校一直在扩大汉语教学为12000名学生服务。选B。
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