Помогите с заданием по английскому gazizov

Read the text and complete the sentences with the right words.

Choose the correct answer.

NASA technology helped to solve the crime

In 1991, Dawn Sanchez disappeared from her motel in Los Altos, California, (when, which,where,that)
she was last seen driving away with her boyfriend in a 1979 Pontiac Grand Prix. The boyfriend was an obvious (defendant,observer,suspect,witness)
, but no body, weapon, or even a sign of the car could be found and the police stopped (investigating,to investigate, investigate, investigated
this case. Years later, a tip was received that some evidence of the woman's murder was buried in a vacant lot in Alviso. However, excavating the entire vacant lot would be extremely costly. Solving the case was (in, on, for, of)
the District Attorney's best interest, so he asked the United States Geological Survey for help. They connected the investigators with NASA's Payload Directed Flight research group.

This group developed technologies to help Earth Science collect data using magnetic and ground-penetrating radar sensors. Thanks to the help of the NASA team, car parts were discovered in the Alviso lot, providing evidence that helped take the boyfriend (on, to, for, in)
court.