[ Passive Voice ]
Who has composed this song?
A. Composing of this song has been done by who?
B. Who composed this song?
C. By whom has this song been composed?
D. This song will be composed by whom?

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Tenses and Word Formation › ViewThe customer ——— complained through a variety of channels before leaving a negative review on the Web site.
A. had
B. did
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Modal Verbs › View
…………… going to the theatre tonight?
A. Let’s
B. We could
C. What about