Manybusinessesstartedupbycollegestudentshave

问题详情：

Many businesses started up by college students have _________ thanks to the comfortable climate for business creation.

en off                     n off                   ed off                  off

【回答】

B

【解析】试题分析：考查动词短语辨析。fall off跌落，下降；take off起飞，成功，受欢迎；turn off关闭；leave off停止，中断；根据句意可知B项正确。

考点：考查动词短语辨析

知识点：词组 短语

题型：选择题