It is high time we sense of social responsibility and hard so that weIt is high time we ( ) sense of social responsibility and ( ) hard so that we can live up to our country's expectations.A、must develop；muststudy B、developed；stiudied C、are

It is high time we sense of social responsibility and hard so that weIt is high time we ( ) sense of social responsibility and ( ) hard so that we can live up to our country's expectations.A、must develop；muststudy B、developed；stiudied C、are
It is high time we sense of social responsibility and hard so that we
It is high time we ( ) sense of social responsibility and ( ) hard so that we can live up to our country's expectations.
A、must develop；muststudy B、developed；stiudied C、are developing；are studying
D、would develop；would study
为什么填developed；studied?

It is high time we sense of social responsibility and hard so that weIt is high time we ( ) sense of social responsibility and ( ) hard so that we can live up to our country's expectations.A、must develop；muststudy B、developed；stiudied C、are
选B正确.
句子意思：
早该是我们培养社会责任感并努力学习以便不辜负祖国期望的时候了.
考点：
虚拟语气固定句型结构：
It is (high/the very)time that sb did sth/should do sth
即该句型中,that从句经常使用【动词过去式或should+动词原形】来表达虚拟语气.
祝你开心如意!

这是固定句型，It's high time 后跟动词的过去式