Question

Fill in the blank with the most appropriate option:

Long ago people _____ little about those minerals.

• A. had known
• B. knowed
• C. will know
• D. knew
• E. have known

Answer 1

The correct option is D knew

The given sentence explains an action that was done in the past, hence we will use simple past tense to fill in the blank.

Option A - 'Had known' is the past perfect tense. Thus option A is incorrect.

Option B - 'Knowed' is an incorrect conjugation of the verb 'know'. Thus option B is incorrect.

Option C - 'Will know' is the future tense. Thus option C is incorrect.

Option E - 'Have known' is the present perfect tense. Thus option E is incorrect.

Option D - 'Knew' is the simple past tense of the verb 'know;. Thus option D is the correct answer.

'Long ago people knew little about those minerals.'