维新变法运动的兴起主要表现为

①公车上书

②维新变法思想的传播

③各地学堂、学会、书局、报馆的纷纷建立

④康有为、梁启超、谭嗣同等领袖人物的涌现

A．①②③

B．②③④

C．①③④

D．①②③④

There are many people downstairs. What do you think ______?

A．to happen

B．happening

C．is happened

D．has happened