Problem: During a transit , the Earth would be visible from Mars as a small black disc moving across the face of the sun .
During a transit , Mars would be visible from Earth as a small black disc moving across the face of the Sun .
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A: no

Problem: The tower house , built in the 9th and 10th centuries , was expanded in the Middle Ages into a castle .
The tower house , built in the 9th and 10th centuries , was expanded into a castle in the Middle Ages .
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A: yes

Problem: Prostitution is widespread in Albania but illegal .
Prostitution in Albania is widespread but illegal .
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A:
yes