______ the fact that his initial experiments had failed, Prof. White persisted in his research.

A:In spite of B:Because of C:As to D:In view of

______ the fact that his initial experiments had failed, Professor White persisted his research.

A:Because of B:As C:In spite of D:In view of

Barbara ______ in doing it again though she had failed more than a dozen times.

A:insisted B:persisted C:assisted D:consisted

My English teacher ______ me to try for a position at university.

A:insisted B:persisted C:encouraged D:proposed

She persevered in her ideas despite obvious objections raised by friends.

A:persisted B:insisted C:resisted D:suggested

She {{U}}persevered{{/U}} in her ideas despite obvious objections raised by friends.

A:persisted B:insisted C:resisted D:suggested