If doctors ______ (discover) bacteria earlier, many plague victims ______ (not die)., If people ______ (not ignore) hygiene in the past, pandemics ______ (be) less dangerous today., If dinosaurs ______ (not go) extinct, humans ______ (share) the Earth with them now., If scientists ______ (understand) malaria sooner, millions of lives ______ (be saved)., If governments ______ (act) faster during the Spanish Flu, people today ______ (trust) public health systems more., If mosquitoes ______ (not spread) malaria in the past, the disease ______ (not be) a problem today., If medieval doctors ______ (have) modern medicine, the plague ______ (not change) history so dramatically., If dinosaurs ______ (develop) immunity to diseases, they ______ (exist) today., If people ______ (learn) from past pandemics, they ______ (be) more careful now., If antibiotics ______ (exist) centuries ago, many historical diseases ______ (not affect) us today..

Conditional Practice – 3rd & Mixed Conditionals

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