Is this the museum ______ the students visited the day before yesterday

Sometimes our opinions differ _______ whatwe choose to observe and how we deal with what we’ve observed

People would believe my story ifI __________ not so young.[ ]

There were few doctors, _____ he had to work very hard _____ his own.

has been trying to bring its nuclearcrisis under ____ control, but ____ spread of radiation has raised concernsabout the safety of the nuclear energy