Underline the correct word in bold. a. i have observed this phenomenon this week/last month. b. they finished their experiment yesterday/already. c. the lecturer has just/a minute ago turned our attention to static electricity. d. i have seen this article on monday/hefore. e. the companies signed an agreement on limiting greenhouse gases five days ago/recently. f. galvani observed that the legs of the dead frog jumped as a result of an electric charge during his experiments/ever.