A great explosion in a chemical factory in Hangzhou several months ago.
A. occurred
B. occurred to
C. has happened
D. has taken place
网友回答
(答案→)A. occurred
B. occurred to
C. has happened
D. has taken place
解析：动词辨析题。杭州一家化工厂你个月前发生了巨大爆炸。 根据时间状语several months ago为过去的时间排除C、D选项，又因为occurred to为“想起”之意故选A