It wasn’t necessary for them to call for help afte...

A

- Hướng dẫn giải

Phương pháp giải:

Giải chi tiết:

They didn’t need to call for help after all

Or: - They didn’t have to call for help after all.

Or: - They needn’t have called for help after all.

It + wasn't + necesaary + (for sb) + to V = S + didn't need to V = S + needn't have + Ved/PP = S + didn't have to V