—The box is too heavy! I can't carry it.       

―          ! Let me help you.         [ ]

A. Don't worry              

B. That's OK          

C. Don't be afraid            

D. Thanks a lot

哥伦布发现新大陆是人类历史上最大的偶然巧合之一。由于一系列计算错误，他把西班牙到印度的距离大大缩短了，以致认为到达的地方是     [ ]

A．美洲                                  

B．非洲     

C．亚洲                                  

D．大洋洲