问题
选择题
Great changes __ _ since he left his hometown.
A．have taken place
B．have been taken place
C．were taken place
D．took place
答案
答案：A
题目分析：句意:自从他离开家乡以来，家乡发生了很大的变化。这句话的主语是great changes，大的变化，take place是一个固定短语，意思是发生，它不能用于被动语态，故排除B和C。句子中有since，它常和现在完成时连用，故应选A。