Am nevoie de răspuns, azi.
Put the verbs in brackets in either the Present Perfect or the Present perfect Continous
1 Richard Branson, owner of Virgin Atlantic,......... (fly) balloons for many years. He still flies them today.
2 I know he........ (make) a transatlantic flight, but I'm not sure when.
3............. you ever............... (see) a hot-air balloon?
4 Scientists............ (work) on a new plane but the work is not finished yet.
5 John Glenn......... (orbit) the Earth many times in his life.
6 Mir, the space station,.......... (orbit) the Earth non-stop since 1986.
7 Captain Lewis is a very experienced Concorde pilot. He...... (fly) the supersonic plane for ten years.
8 They.......... (build) a new terminal in the city so more airlines can use the airport now. ​