The courier . . . . . . . . three days ago, but why haven’t you received it yet? A. has been sent B. has sent C. was sent D. sent

The correct answer is: A. has been sent

The courier is the one who sends the package, so the sentence should be in the passive voice. The past participle “sent” is used to form the passive voice. The other options are not in the passive voice.

• B. has sent is in the active voice. The subject
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