Soft drinks _______ to children for free in some restaurants on Children’s Day.

A．offer

B．have offered

C．are offered

D．will be offered

两次获得诺贝尔奖，在化学界享有盛名的科学家是 [ ]

A. 爱因斯坦

B. 达尔文

C. 居里夫人

D. 欧拉