Thetheoryofblackholesinspace__(accept)bymanyseriousscientistsandastronomers.

Ifyouhadbeeninbetterhealth,we___(allow)youtojointheminthework.

For those involved, the scandal has been a very________(pain)experience

We_____knowledge from our families,schools,jobs,and the mass media

The present crisis bears some ________(similar) to the oil erisis of the 1970s