Q484696 - Prefeitura de Fortaleza - CE - 2016 - Prefeitura de Fortaleza - CE - Professor - Inglês

When asking a question in English, it is CORRECT to say:

a) Modal verbs need an auxiliary verb.
b) The main verb is used before the subject.
c) ‘Do’ can be used as both the main verb and the auxiliary verb.
d) ‘Did’ can be used in both the past tense and the past perfect tense.