Decide about the correctness of the following items concerning singular and plur...

Questão de Inglês da banca CESPE CEBRASPE aplicada no concurso SGA DF (2004). Confira a resolução completa abaixo:

Decide about the correctness of the following items concerning singular and plural forms.

The plural forms of hypothesis, thesis, and crisis are respectively hypotheses, theses, and crises.