When _____ about one of the biggest concerns today, many citizens mentioned the

题干

When _____ about one of the biggest concerns today, many citizens mentioned the sharp rise in housing price.

A．asking	B．to ask
C．asked	D．having asked

上一题下一题 0.64难度单项选择更新时间:2014-05-30 05:46:29

小学学科试题库

初中学科试题库

高中学科试题库