Archimedes ( discover )........... the theory of buoyancy while he ( take ) .......... a bath

2 câu trả lời

discovered/was taking

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