1. if the boy hadn't been lazy, he would have got good marks

-> vì câu điều kiện trái ngược với thực tại trong quá khứ nên dùng câu điều kiện loại 2

2. Mary apologized for not cleaning the kitchen - cấu trúc apologize for V-ing

3. Many local people have approved of building a new hospital near here - be in favor of Ving/sthing = To approve of Ving/sth = đồng thuận, chấp nhận cái gì

1.The boy didn't get good marks because he was lazy

-> If the boy had not been lazy, he would have got good marks (Nếu chàng trai không lười thì anh ấy đã được điểm cao)

2."I'm sorry that i didn't clean the kitchen,"said Mary.

->Mary apologized for not cleaning the kitchen (Mary xin lỗi vì cô ấy không dọn bếp)

3.Many local people are in favor of building a new hospital near here.

->Many local people have favor to build a new hospital near here