`1`. Mary, whom I cooked a meal for yesterday, is a vegetarian.

`->` "whom" thay cho túc từ chỉ người trong mệnh đề quan hệ

`2`. Mary said that she would come with me as soon as she was ready.

`->` Câu trần thuật: S + said + that + S2 + V lùi thì

`3`. It's necessary for all of us to prevent Coronavirus.

`->` It + be + adj + for SO + to V

`4`. I asked Ha what she was doing then.

`->` Câu trần thuật có từ để hỏi: S + asked + O + từ để hỏi + S2 + V lùi thì

1. Mary , whom I cooked a meal for yesterday , is a vegetarian .

2. Mary said that the would come with me as soon as she war ready .

3. It's necessary for all of us to prevent Coronavirus .

4. I asked Ha what she was doing then .

Xin hay nhất để có thêm động lực !

Chúc hok tốt !