[ Grammar ]
Carlos _________ _________ ___________ all day, so he had a headache.
A. had worked
B. was working
C. has been working
D. had been working
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Grammar › ViewMr. Monahan is a dad.
In this sentence, what is the word “dad”?
A. Object of the preposition
B. direct object
C. predicate noun
D. indirect object
Grammar › View
How old are you?
A. She’s 21.
B. I’m 21