In each of the following sentences, the independent clause is written in the passive voice. If you were to rewrite the clause in the active voice, select the answer that correctly identifies the words you would use as subject and verb. If the independent clause has no word(s) that could serve as a subject, an appropriate subject may be provided in one of the answers. If neither answer is correct, select Neither is correct. Long before the Europeans arrived, rich cultures and languages had been developed by Native American tribes.

In the following sentence, the independent clause is written in the passive voice. Select the answer that correctly uses the active voice. On the night of the 1968 California presidential primary, which was a close race, Robert F. Kennedy was assassinated by Sirhan Bishara Sirhan.

In the following sentence, the independent clause is written in the passive voice. Select the answer that correctly uses the active voice. The fate of the English settlers on Roanoke Island is not known.

In the following sentence, the independent clause is written in the passive voice. Select the answer that correctly uses the active voice. It was pledged by the chief of police that drug dealers would be prosecuted to the full extent of the law.

In the following sentence, the independent clause is written in the passive voice. Select the answer that correctly uses the active voice. After years of tight races between the New York Yankees and other teams, the World Series was finally won by the Boston Red Sox in 2004.

In the following sentence, the independent clause is written in the passive voice. Select the answer that correctly uses the active voice. The role of the emperor was sung by Placido Domingo.

In the following sentence, the independent clause is written in the passive voice. Select the answer that correctly uses the active voice. Bobby Thompson’s 1951 pennant-winning walk-off home run was heard by American soldiers listening to radios in Korea.

In the following sentence, the independent clause is written in the passive voice. Select the answer that correctly uses the active voice. By whom is the bride traditionally "given away"?

In the following sentence, the independent clause is written in the passive voice. Select the answer that correctly uses the active voice. In addition to September 11, 2001, what other war-related dates are remembered by Americans, especially by those who lived through World War II?

In the following sentence, the independent clause is written in the passive voice. Select the answer that correctly uses the active voice. The film was made by someone you never heard of.