Question

3. Change the number of the noun in bold type making all the other necessary (pronoun and verb) changes. 1) Have you heard the diagnosis of a qualifi ed physician? 2) Th is formula will hopefully prove the basis of all future projects related to Physics of Semiconductors. 3) Th ey found this a diffi cult thesis to defend. 4) Th ere were a lot of cacti fl ower pots in the room. 5) Th ere are a lot of hypotheses about the appearance of life on Earth. 6) We don't have enough data to prove the phenomenon yet. 7) Detectives were on duty at the terminus of that airway. 8) We cannot fi nd the clue to the new enigma of the universe. 9) A lot of people nowadays have to go through so many critical situations that can certainly lead to a psychological crisis.

Answer 1

1.diagnosis-diagnoses
2.formula-formulae;basis-bases
3.thesis-theses
4.cacti-cactus
5.hypotheses-hypothesis
6.data-datum;phenonenon-phenomena
7.terminus-termini
8.enigma-enigmae
9.crisis-crises