What is wrong with these sentences.

1.A copy of Moby Dick and a magazine has disappeared from my room.

Not only the muffler but also the spark plugs need to be replaced.

I am wondering what is wrong in each of these sentences.

1 answer

Two things disappeared from your room. Would you say "they has disappeared" or "they have disappeared"?

The construction, "not only . . . but also," takes a singular verb. Would you say "it needs to be replaced" or "it need to be replaced"?
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