the help of man-made satellites we can know what the weather will be like in the next fe

问题补充：

the help of man-made satellites, we can know what the weather will be like

in the next few days.

A. Under

B. With

C. Using

D. By

答案：

A. Under

(答案→)B. With

C. Using

D. By

解析：表示在什么的帮助下可用介词with，构成with the help of，故本题选B。