Question

WYBIERZ ODPOWIEDNI CZAS PRESENT PERFECT SIMPLE LUB PRESENT PERFECT CONTINOUS .
Scientists say they .................... (discover) a new Wonder drug that can help people lose weight without having to diet or take exercises. They ............(test) the drug on labolatory rats for the past year and say they ............(have) good results. We .........(not/start) testing the drug on humans yet , but it won't be long before we do , " said Professor Higgins.
Although research ...............(show) that three may be a market for the new Wonder drug, dietican Rosemary Connors is against the idea. She says, '' The only safe way to lose weight ...................(always/be) a balanced diet and regular exercise".
Dam naj !!

Answer 1

Scientists say they have discovered (discover) a new Wonder drug that can help people lose weight without having to diet or take exercises. They have tested (test) the drug on labolatory rats for the past year and say they heve had (have) good results. We haven`t started (not/start) testing the drug on humans yet , but it won't be long before we do , " said Professor Higgins. 
Although research has been showing (show) that three may be a market for the new Wonder drug, dietican Rosemary Connors is against the idea. She says, '' The only safe way to lose weight has always been (always/be) a balanced diet and regular exercise".

Ja bym to tak zrobiła ;)