-
A large number of inventions and discoveries have been made ______ accident.
- A. by
- B. at
- C. on
- D. in
trả lời câu hỏi trước khi xem đáp án bên dướiYOMEDIACâu 1 Đáp án đúng: A
Đáp án đúng là A.
Ta có thành ngữ "by accident" nghĩa là "1 cách tình cờ".
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