Even if you don"t like the work,you__it.A must do B must have done C have to do

Even if you don"t like the work,you__it.A must do B must have done C have to do
Even if you don"t like the work,you__it.A must do B must have done C have to do

Even if you don"t like the work,you__it.A must do B must have done C have to do
must have done对某事的肯定猜测
must do和have to do都表示非做不可
但是后者更强调客观的事实,即这件事并非一定是出于自愿的,有可能是被迫的
句子是：即使你不喜欢这项工作,你也不得不去做.（突出了这个语气）

C

c
must have done
对过去事实肯定的推测
have to do
必须做的
句子的意思是即使你不喜欢这个工作，但是你还是一定要做。