______ (he learn) about computers, we would have hired him to work here.
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____de ce qui était humain ne leur ft étranger.
If I had worked hard at school, I ______ (be) an engineer, too.
It is strange that he ______ (leave) without a word. It is not like him.
—When ______ this kind of computer ______ —Last year. (design)
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