Jim used to be my best friend but we aren't friends any longer.
2) I am going to prepare for a maths test today
3)I am going to take the pill for a headache
4)I am going to cleane my room
5)I am going to relax
6)I am going to eat somthing tasty
7)I am going to prepare gift for my sister on this week.
16.1 b)
16.2 a)
16.3 d)
16.4 d)
16.5 c)
16.6 b)
16.7 d)
16.8 a)
1 should
2 must
3 must
4 must
5 don't have to
6 don't have to
7 should
8 mustn't
9 don't have to
10 should