![](https://cos-cdn.shuashuati.com/pipixue-web/2020-1231-2005-12/ti_inject-812ce.png)
Directions: Select the best word and fill in the blank with the appropriate form.miraculousconvertemulatebreakthroughpromiseactivatededicateintermittentlyhurdlehamperbidcontendinfrastructuresubstituteadvocateself-sufficientinspirefabulouslyimplicationfake12. The government has long supported research into agricultural biotechnology as part of a drive to ensure the nation remains __________ in staple crops.