-will you be able to see his father when the first class is over?- I am afraid not,I___a lecture

问题描述:

-will you be able to see his father when the first class is over?- I am afraid not,I___a lecture
A will be attending B am going to attend 选A怎么解释为什么不选B

中文是:第一节课下的时候你能见到他爸爸吗?(是对将来的一个估计)
恐怕不能,那时候我可能正要去听个讲座.(B的意思是”我现在正要去听讲座“,因为对方问的不是现在,而是第一节课下的时候,所以A更确切)