1. You ( not be ) any use to me unless you learn to tybe 2. If I ( have ) enought money , I will buy a new skateboard
3.She will be angry if you ( not , tell ) the truth
4.If they take their medicine , they (feel) better
5 . We ( not , get) good marks if we don't learn hard
6.If he ( not , go) back now , he will be late
7.They ( not / let) you in if you come late
8.If you ( not/go) away , I'll send for a policeman

1. You ( not be ) ..are not of any use to me unless you learn to type

2. If I ( have ) ...will have.. enought money , I will buy a new skateboard

3.She will be angry if you ( not , tell ) ..do not tell the truth

4.If they take their medicine , they (feel) ..will feel... better

5 . We ( not , get) ...do not get. good marks if we don't learn hard

6.If he ( not , go) ...does not go. back now , he will be late

7.They ( not / let) will not let. you in if you come late

8.If you ( not/go) ..do not go.. away , I'll send for a policeman

since it is asking for her reaction to elnora's trouble at school you can rule out any answers with a positive response (b). then you can rule out (d), this is because it does not show the mother's reaction but the daughter's response. that leaves you with two options (a) and (c), by looking at the options you can rule out (c) because it isn't referring back to elnora's issues at school.