The gold loop discovered in the ancient tomb _____ to be _____ in studying the history of the Jin Dynasty.
A. was turned out; valuable B. proved; of great value
C. was proved; of great valuable D. proved; much valuable
The gold loop discovered in the ancient tomb _____ to be _____ in studying the history of the Jin Dynasty.
A. was turned out; valuable B. proved; of great value
C. was proved; of great valuable D. proved; much valuable
B