She was surprised to find the fridge empty; the child      everything .   [ ]

A. had been eating    

B. had eaten  

C. have eaten  

D. have been eating

保险合同对双方当事人产生了约束力，称之为( )。

A．保险合同的生效
B．保险合同的履行
C．保险合同的成立
D．保险合同的有效