Task 2
1) am thinking 2) did you arrive 3) is running 4) will wait 5) will come 6) made, gave 7) speaks, don't understand 8) will you buy 9) are presenting 10) broke down 11) will have finished 12) are becoming 13) was studying, worked 14) will live 15) lost, has been.
Task 3
1) competition 2) participations 3) performance 4) decision 5) precision 6) timing 7) accuracy 8) photography 9) fortunately 10) certainty.