请用方框中词语或词组的适当形式完成下列句子，每个词语或词组只用一次。

donate, pat, dedicate, conflict, cure, download, regardless of, absence, ensure, assess

Quality input             quality output.
If you saw a father    his son on the back while smiling happily, what would you think was going on?
We will be able to              any files or update our computers.
Medical advances ranged from discovering the causes of diseases under microscopes to surgical procedures replacing diseased organs with              ones.
However, learning English as a foreign language is very difficult in the      of a native language.
        these differences, experts agree that across the globe there is one form of body language that receives universal approval—the smile.
The insects like robots may be sent around the cells of our body to       our health.
The pioneers of the 20th century were all       to improving all the quality of human life on earth.
During the Second World War, when Fleming’s discovery was first helping to    people, the US Navy was looking for ways of improving the accuracy of their missiles.
There will therefore no longer be any              and people will be able to live together in peace and equality.