my brother is ill .i ( ) telephone the doctor sorry,i( )go home.My brother is ill.I ( )telephone the doctor.Sorry,I( )go home now.
问题描述：
my brother is ill .i ( ) telephone the doctor sorry,i( )go home.
My brother is ill.I ( )telephone the doctor.
Sorry,I( )go home now.
答
need to
must 表示肯定的回答，have to 有无奈之意，这里的口气表示我立刻回家
答
should 应该
have to 或者 should 都可以 表客观原因不得不回，或必须回
答
My brother is ill.I ( will ) telephone the doctor.
Sorry,I ( must) go home now.
答
need to
have to