[ Some vs. Any ]
That’s funny. There is ……….. in the house, but no one opens the door.
a) anybody
b) somebody

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Homonyms › ViewOne of the most hard-working of all insects is the ___.
a. ant
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Vocabulary and Grammar › View
. Which detail does the author include to support the idea that the space station is useful?
A. It makes people rich.
B. It keeps travel costs low.
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Grammar › View
I _____ chocolate cake yesterday.
A. have
B. had
