例如： As you are already 18 years old, you should know what to do and what not to do
这个句子用because连接就不太合适。好在军队职称考试中并不要求作这种分辨。
for 注意：一般只能放在主句后面，即主句 + for从句，例如：
He must have gone to bed, for it is too late. 该句不能用because
now that / seeing that / considering that
Seeing that this problem was settled, they proceeded to the next one.
in that一般放在主句后面，例如：
Humans are superior to animals in that they can use languages as a tool to communicate.