the villagers ——to fetch water from a dirty pond two years ago.could gomust gohadmight go选出正确答案并给出理由

Question

the villagers ——to fetch water from a dirty pond two years ago.
could go
must go
had
might go
选出正确答案并给出理由

Answer 1

had
由于外部因素,二使得人们“不得不”这么做