http://www.ego4u.com/en/cram-up/tests/present-perfect-simple-1

https://docs.google.com/a/canada-english.com/document/d/1KHWi4oO5w64Nur75TXI1z-WZj1FEhohrhw8N0ACxGUA/edit?hl=en&authkey=CNuOrKUF

<a href="http://www.englishexercises.org/makeagame/viewgame.asp?id=3365">PRESENT PERFECT or SIMPLE PAST?</a>, by Carlos Reis<br>Find this and other <a href="http://www.englishexercises.org/buscador/buscar.asp?nivel=any&age=0&tipo=any&contents=verb tenses">verb tenses exercises</a> in <a href="http://www.englishexercises.org">English Exercises .org</a>

http://www.englishexercises.org/makeagame/viewgame.asp?id=3365

play - HAVE YOU EVER?


Sarah´s passive sheet

Examples	Usage
Fred Meyers has had excellent profits this quarter. The class's understanding has increased greatly this semester. Have they finished the report yet?	Giving or asking for news or recent events.
The study of irregular verbs has improved test scores. They have bought a new car. I've already eaten lunch. US/English exception: It is also accepted in US English to ask "Did you phone her yet?" as opposed to the more common "Have you phoned her yet?"	Past actions with results in the present.
She's traveled in many parts of the world. Have you ever been to France? They've never seen a mountain.	Life experience
He's lived in San Francisco for 10 years. How long have you worked for this company? They've studied English for 3 years. She hasn't traveled abroad.	Unfinished actions (action still in progress). In this respect the present perfect and present perfect continuous are very similar. See contrastwith Present Perfect Continuous
Common present perfect time expressions include:	for (with a period of time), since (with an exact point in time), ever, never, yet, already, this week (month, year)