... spelling a make something better b become better c make something worse d become worse 13 is the study of the earth and its countries, mountains, rivers, weather, etc a Geography b Physics c Chemistry ... for b with c to d on 13 He promised _ me a to help b helping c help d to helping 14 is the study of the life of animals and plants a Biology b Physics c Chemistry d Literature 15 She got ... made some interesting about the film a.comments b commenting c commences d commends 15. is studying again something that you have learnt, before an exam a Revision b Experiments c.Practice...