1) Mike ... frog species for his biology course when a nature reserve offered him a work position at a research facility. a) has been studying b) had been studying 2) Just yesterday, I ...that the peregrin falcon is the fastest bird in the world and can fly at speeds of 390 km, per hour. a) read b) had read 3) ... at the marine reserve since she became so interested in sea life? a) Did Jane volunteer b) Has Jane volunteered 4) Jake .... at the public zoo when a monkey jumped on his back and licked his ear. a) worked b) was working 5) This rainsforest is huge! We ... for hours and our campsite is still an hour away. a) were hiking b) have been hiking 6) I ... a capybara in real life until today, and I have to say, they're incredibly cute! a) haven't seen b) hadn't seen

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