Tenses

[Fourrier]

Choose the correct answer
A few years ago, industrial gas emissions…. strictly regulated.
(A) were
(B) have been
(C) would be
(D) will be

Justification: the tense is not important with present perfect

Is my reasoning true?

[nado92]

Choose the correct answer
A few years ago, industrial gas emissions…. strictly regulated.
(A) were
(B) have been
(C) would be
(D) will be

Justification: the tense is not important with present perfect

Is my reasoning true?

Were is right because of ago.

[Fourrier]

ago is always with the simple past or it can not be used with the present perfect?

[Mehrgan]

ago is always with the simple past or it can not be used with the present perfect?

***not a teacher***
You may see that used with a present perfect. However, it refers to a simple activity finished in the past.

"I've known her since three years ago."

[tedtmc]

not a teacher

The time is stated - a few years ago.
Therefore, it has to be in the past tense.

[tedtmc]

not a teacher

***not a teacher***
You may see that used with a present perfect. However, it refers to a simple activity finished in the past.

"I've known her since three years ago."

The activity started in the past and continues to the present. Thus, the present prefect tense is used.

[Mehrgan]

not a teacher


The activity started in the past and continues to the present. Thus, the present prefect tense is used.

Thanks,
However, I wanted to mention that it's also possible to have "ago" with Present Perfect, though it only refers to the starting point...