QUES: unacceptable (OPTIONS:
- unacceptable
- acceptable)
ANS: San Francisco has been lived in by my brother.

QUES: acceptable (OPTIONS:
- unacceptable
- acceptable)
ANS: This problem's analysis is made a lot easier when you understand differential equations.

QUES: unacceptable (OPTIONS:
- unacceptable
- acceptable)
ANS: Brown equipped a camera at Jones.

QUES: acceptable (OPTIONS:
- unacceptable
- acceptable)
ANS:
Ron certainly will buy a dog.