Mark the letter A, B, C, or D to indicate the sentence that best combines each pair of sentences given
Dr. Percy Spencer invented the microwave oven. The invention happened by accident.
Dr. Percy Spencer invented the microwave oven as an accident.The microwave oven was Dr. Percy Spencer's accidental invention.The invention of the microwave oven by Dr. Percy Spencer was an accident.Dr. Percy Spencer's invention of the microwave oven was made in an accident.Hướng dẫn giải:Kết hợp câu bằng cách sử dụng từ phái sinh (accident → accidental)
Dịch: Tiến sĩ Percy Spencer đã phát minh ra lò vi sóng. Việc phát minh ra một cách tình cờ.
