Which of the phrases given below each sentence should replace the phrase printed in bold type to make the sentence grammatically correct?
The man $to\, whom\, I\, sold$ my house was a cheat.

Which of the phrases given below each sentence should replace the phrase printed in bold type to make the sentence grammatically correct?
For a few days,the new teacher lectured $across\, the\, heads$ of the students.

Which of the phrases given below each sentence should replace the phrase printed in bold type to make the sentence grammatically correct?
In addition $to \,enhancing\, their\, reputations$ through strategic use of philanthropy, companies are sponsoring social initiatives to open new markets.

Which of the phrases given below each sentence should replace the phrase printed in bold type to make the sentence grammatically correct?
Maria's fans $were\, all\, shocked\, at$ her failure in the Olympics.

Which of the phrases given below each sentence should replace the phrase printed in bold type to make the sentence grammatically correct?
The orator $had\, been\, left$ the auditorium before the audience stood up.

Which of the phrases given below each sentence should replace the phrase printed in bold type to make the sentence grammatically correct?
One of my drawbacks is that $I$ $do\, not\, have\, to$ tolerance of ambiguity.