问题

They ______ so tired if they ______ for a whole day.
A:wouldn’t feel, didn’t walk
B:wouldn’t feel, weren’t walking
C:wouldn’t be feeling, weren’t walking
D:wouldn’t be feeling, hadn’t been walking
B:wouldn’t feel, weren’t walking
C:wouldn’t be feeling, weren’t walking
D:wouldn’t be feeling, hadn’t been walking
正确答案是: