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Question

Concerning the verb tense in “They have called on scientific journals” (line 11), it is correct to state that:

Accepted Answer

the present perfect is used because the action
happened at some unknown point in the past.

Answer

the present perfect is used because the action is
happening at this moment.

Answer

the past perfect could also be used because the action
happened at some unknown point in the past.

Answer

the simple past could also be used because the action
took place in the past.

Q200759 - Prefeitura de Fortaleza - CE Professor - Inglês 2018