1. Some athletes try to [?] their performance using steroids and other drugs .
2. I find your production facilities quite [?] . You really should modernise your factory .
3. The addition of certain genes helps make goods , for instance tomatoes , more [?] . In this way , minimal damage is [?] when foods are transferred or stored .
4. He was [?] of murder and received a long sentence .
5. He [?] guilty in order to receive a lesser sentence .
6. The senator involved in a sex scandal was forced to [?] .
7. No one has maintained that psychology or psycho - analysis offers the [?] solution to people's problems in modern society .
8. Comedy must be [?] that is , it must include exaggeration .