Completar frases SIMPLE PAST vs PRESENT PERFECTVersión en línea Complete the sentences, use Simple Past or Present Perfect Simple por Eumir Pulido de la Pava 1 ~~~~~~~~~~~~~~~~~~~~~~~~~~ ¿ Malaria ? ¿ In Canada~~~~~~~~~~~~~~~~~~~~~~~~~ ¿ Have you ever had malaria ? if you have , the chances are that you ( get ) the disease in a hot country . Malaria is most common in tropical countries , especially those with wet and humid climates , where the mosquitos which carry the disease can flourish . However , recently , malaria ( become ) more common in Canada . According to a recent report , over 1000 people ( contract ) the disease in Canada in 1997 , and the number ( rise ) every year since 1994 . This is an alarming trend . ¿ Why is the incidence of malaria rising here ? The answer is travel . More and more Canadians travel abroad every year , and some of them catch malaria . However , when a Toronto woman ( become ) sick recently , her doctor ( discover ) that she ( never travel ) abroad in her life . She must have been bitten by a mosquito which ( get ) the disease form another sick Canadian .