Albert Einstein & the Present Perfect
Education is what remains after one ______ __________ (to forget) what one _____ __________ in school.
has forgotten/has learned
Anyone who ____ never _____ (to make) a mistake ____ never _______ (to try) anything new.
has made/has tried
It ______ __________(to become) appallingly obvious that our technology______ ______________(to exceed) our humanity.
has become/has exceeded
The devil _____ _______ (to put) a penalty on all things we enjoy in life. Either we suffer in health or we suffer in soul or we get fat.
has put
The gift of fantasy _____ ________ (to mean) more to me than my talent for absorbing positive knowledge.
has meant
The release of atomic energy ____ not _______ (to create) a new problem. It ____ merely _______ (to make) more urgent the necessity of solving an existing one.
has created/has made
We still do not know one thousandth of one percent of what nature ____ __________ (to reveal) to us.
has revealed
The unleashed power of the atom _____ _________ (to change) everything save our modes of thinking and we thus drift toward unparalleled catastrophe.
has changed
Isn’t it strange that I who _______ __________ (to write) only unpopular books should be such a popular fellow?
have written
Great spirits ______ always ___________ (to encounter) violent opposition from mediocre minds.
have encountered
