Chuyên đề 10: Động từ khuyết thiếu

I’m sure that they had practiced hard for the games as they won a lot of medals. A. They couldn’t have practiced hard for the games as they won a lot of medals B. They must have practiced har

6/60

I’m sure that they had practiced hard for the games as they won a lot of medals.

They couldn’t have practiced hard for the games as they won a lot of medals

They must have practiced hard for the games as they won a lot of medals

They shouldn’t have practiced hard for the games as they won a lot of medals

They might have practiced hard for the games as they won a lot of medals.

Giải thích

Chọn B