31. she / be / my best friend / for 10 years. => ……………………………………………. .
32. There / be / a lot / interesting / books. =>………………………………………………………..
33. We/ should/ eat/ more/ fruit / vegetable. => ……………………………………………………… .
34. If/ you/ not/ study/ harder, you/ get/ bad mark. => ……………………………………………………………..
35. She/ not/ go/ school/ because/ the rain. => ………………………………………………………….