Why don’t you put a better lock on the door?" said John.Đoạn văn48/50“Why don’t you put a better lock on the door?" said John.John suggested to put a better lock on the door.John asked why not putting a better lock on the door.John suggested putting a better lock on the door.John made us put a better lock on the door.Giải thíchĐáp án là C.