After a long walk,the old man be tired now.A、can B、need C、must D、can’t

问题描述:

After a long walk,the old man be tired now.A、can B、need C、must D、can’t
After a long walk,the old lady______ be tired now.
A、can B、need C、must D、can’t

must
表示肯定的语气
a表示猜测
b表示需要
d表示不可能