Answer:
Hm I am not understanding what you are trying to ask...
Answer:
'Had Bought'
Explanation:
The infinitive 'to buy' turns into 'had bought' in past perfect. The PAST TENSE is simply 'bought', but the PAST PERFECT tense is 'had bought'.
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Answer:
It also influences viewers' attitudes and beliefs about themselves, as well as about people from other social, ethnic, and cultural backgrounds. Between the 1940s and 2000s, commercial television had a profound and wide-ranging impact on American society and culture.