Great changes _____ in Hainan in the past three years.

问题描述:

Great changes _____ in Hainan in the past three years.
a.has taken place b.took place c.have taken place d.have been这个选择题的答案是 took place 我想问 “take place”前是不可以加have的吗?

可以加..
但是加是加在现在完成时或者过去完成时.
这题是过去时而已.
后面的时间状语是:in the past three years
所以前面要用过去时而不是完成时.