Nobody knows ___________ how many people are to blame for the coal-mine accident, so the government is trying to find out the whole truth about the accident.
A、inwardly
B、honestly
C、cleverly
D、precisely
【正确答案】：D
【题目解析】：inwardly 思想上地，honestly，真诚地，cleverly 聪明地，precisely 精确地, 确切地
题意为：没有人确切地知道有多少人要为煤矿事故负责，所以政府正在试图找出事故的全部真相。因此答案选D
