The project ________ secret. Everybody ________ about it soon. A. could not been kept / is learnt B. could not be kept / learnt C. could not be keep / was learnt D. could not kept / is lear
The project ________ secret. Everybody ________ about it soon.
A. could not been kept / is learnt
B. could not be kept / learnt
C. could not be keep / was learnt
D. could not kept / is learned