a开头首字母填空I am a__ that he is not here.

问题描述:

a开头首字母填空I am a__ that he is not here.
如题
I am a__ that he is not here.
如果能加以解释就更感谢了
最好能解释下that作引导词的用法

答案应该是afraid 恐怕他现在不在这儿.