The problem with A:
1. The passage intends to say that the models who do not smile at all or who do not smile even for a second in their commercial postures adequately give a picture of elitism and exclusivity. The combining of do not smile and adequately is a water-down from the original intent. Therefore, it is wrong to say smile adequately
Grammar: adequately is an adverb as many have already noted. In most cases, adverbs modify a verb that comes after it. This is more a custom than a
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1. The passage intends to say that the models who do not smile at all or who do not smile even for a second in their commercial postures adequately give a picture of elitism and exclusivity. The combining of do not smile and adequately is a water-down from the original intent. Therefore, it is wrong to say smile adequately
Grammar: adequately is an adverb as many have already noted. In most cases, adverbs modify a verb that comes after it. This is more a custom than a
...
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