42. I think you should prepare carefully for your journey.
I advise you …………prepare …carefully for your journey.……………………………………
43. The library lends books to both students and teachers.
Both students and teachers can ……………borrow books from the library………………………….
44. My mother is always busy from morning till night.
My mother is ……always not free from morning till night.……………………………………………………..
45. Unless she waters these flowers everyday, they will die.
If she …………………she doesnt water these flowers everyday, they will die………………………………………………………
46. Pay electricity bill today or your electricity will be cut off.
If you …………dont pay electricity bill today or your electricity will be cut off…………………………………………………………………..
47. Do morning exercises regularly, your body will be fitter.
If …………………………………you do morning exercises regularly, your body will be fitter……………………………………………….
48. Unless she wears warm clothes, she will have a cold.
If she ……doesn't…wears warm clothes, she will have a cold……………………………………………………………………….
49. If it is warm tomorrow, we will have a picnic
Should it …be warm … tomorrow, we will have a picnic………………………………………………………………….
50. Take part in the English club and your speaking skill will be improved
Should you to take in the English club and your speaking skill will be improved