When I was sick I _____ to go to the hospital.was having have had not had hadn't

When I was sick I _____ to go to the hospital.was having have had not had hadn't
When I was sick I _____ to go to the hospital.was having have had not had hadn't

When I was sick I _____ to go to the hospital.was having have had not had hadn't
选had
一般过去时
当我得病了,我不得不去医院.
后面的过程与前面的过程同时发生

had 说的是过去的事情，故用一般过去式。

选had