Answers:

he didn't/did not always study hard when he was a student

Explanation:

• SIMPLE PAST

*~`is used when the activity was happen in the past time

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that sentences is used the pattern of SIMPLE PAST. why? because there are word "was". that word is the past form verb from the world to be "is". so, we use past verb/V2.

and that sentences, have the adverb of frecuency is "always" that adverb isn't to past tense, but for present simple. so, we use the negative sentences, is "did not", and the verb , is verb 1, not verb 2. in the past simple, when the sentences is use the V1, we use the word "did" and "did not"

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• PATTERN OF SIMPLE PAST verbal

(+) S + V2 + O/complement

(-) S + did + not + V1 + O/complement

(?) did + S + V1 + O/complement?

• TIME SIGNAL

yesterday

last month/day/week/year

...year/years ago

just morning/night/afternoon...

once upon a time ( in recount text )

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For Details

• subject : English
• category : complete the sentences
• material : past simple tense ( chapter 2 )
• grade : 8
• level : middle school ( JHS )
• question code : 5
• categorization : 8.5.2