Present Perfect VS Past Simple

1. ¿Cuál de los siguientes es un ejemplo de Present Perfect?

	The inclusion in the cabinet of six ministers and two state secretaries from the right-wing Freedom Party led Austria's European Union partners to move to isolate the new government.
	Complaints were filed on Friday at the United Nations war crimes court in the Hague against UN Secretary General Kofi Annan and other U.N. officials.
	Tribal fighting in northeastern Democratic Republic of Congo has killed up to 5,000 people.

"Researchers at the University of North Carolina at Chapel Hill surveyed 6,897 teens and found that 20% had experienced psychological violence--most often name calling or threats."

2. En la frase anterior, el tiempo verbal es:

	Presente Simple
	Presente Perfecto
	Pasado Simple

3. En el siguiente texto, los verbos subrayados están en tiempo:

The Biology of BeliefBy JEFFREY KLUGER Thursday, Feb. 12, 2009

Most folks probably couldn't locate their parietal lobe with a map and a compass. For the record, it's at the top of your head — aft of the frontal lobe, fore of the occipital lobe, north of the temporal lobe. What makes the parietal lobe special is not where itlives but what it does — particularly concerning matters of faith.  

	Presente Simple
	Pasado Simple
	Presente Perfecto