11. Sandy’s father could not stand her ______ response, so he asked her to make an apology for it.12. The program can only be successful if the students ______ training as an important part.13. Severe pollution in that area has begun to ______ people’s health.14. In the school dining room, both boys and girls ______ one another out of the way.15. The most important ______ that separates ordinary photographs from good ones is the lighting.A. perceiveB. elbowedC. offensiveD. elementE. threaten