We will see to_________that the L/C is opened within the stipulated time.
A、make
B、let
C、it
D、them
【正确答案】：C
【名师解析】:该句中"We will see to it"是一个固定搭配，意思是"确保"或"保证"某事发生。在这个句子中，"it"指代的是"the L/C is opened within the stipulated time"，即保证信用证在规定时间内被开启。因此，选项C "it"是正确的填空选项。
