This big bag is too heavy for the little boy ______.Who volunteers to help him?[ ]

A. carries                  

B. carrying        

C. carried                  

D. to carry  

( )经检验合格应当加贴疫讫标志。

A．进口的玩具

B．进口的汽车

C．出口的打火机

D．出口的烟花爆竹