Archimedes ( discover )........... the theory of buoyancy while he ( take ) .......... a bath
2 câu trả lời
Archimedes ( discover )........... the theory of buoyancy while he ( take ) .......... a bath.
=> discovered / was taking
=> Archimedes đã khám phá ra lý thuyết về sự nổi trong khi ông đang tắm