@duolingoespanol You really need to clarify this “tip”: In English, we say Monday or on Monday. In Spanish, you always say the Monday! Days of week are not = yesterday, today or tomorrow!
Star Trek’s William Shatner has joined the urgent call to world governments to protect half the Earth. They’re meeting right now. Up to a million species are facing extinction. Add your name now and RT. #COP15#ForNature#biodiversity https://t.co/SFm8LDQZnD