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Choose the sentence with the correct subject-verb and pronoun-antecedent agreement. a. martha spend her days gossiping with everyone who walks by. b. each of the ushers in the wedding had to wear his rented tuxedo. c. the marching band don't raise enough money for its trip to the rose bowl parade. d. neither my sister nor i was happy when her had to move last year.

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American history (is, are) studying the american colonies.