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题库 / Prep2007E2-SC-39
As it is with traditional pharmacies, on-line drugstores rely on prescriptions to be successful, since it is primarily prescriptions that attract the customers, who then also buy other health-related items.
As it is with traditional pharmacies, on-line drugstores rely on prescriptions to be successful
As with the case of traditional pharmacies, on-line drugstores rely on prescriptions to have success
As is the case with traditional pharmacies, prescriptions are the cornerstone of a successful on-line drugstore
As traditional pharmacies, so on-line drugstores rely on prescriptions to be successful
Like traditional pharmacies, the cornerstone of a successful on-line drugstore is prescriptions
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B：Since “as” has been used for comparison in this choice, it must be followed by a clause. But “with the case of traditional pharmacies” is a prepositional phrase and not a clause.
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