$\text{⇒ Answer:}$
$\text{1. Hard work can lead to big success.}$
$\text{→ If you work hard, it can lead you to big sucess.}$
$\text{2. Why don’t you put an advertisement in the local newspaper?}$
$\text{”they said to me.}$
$\text{→ They suggested that I should put an advertisement in}$
$\text{ the local newspaper.}$
$\text{3. Why don’t we collect plastic bags?}$
$\text{→ I suggest collecting plastic bag.}$
$\text{4. To use solar energy for a number of day is possible.}$
$\text{→ It’s possible to use solar energy for a number of day.}$
$\text{5. If we use solar energy, we can save natural resources.}$
$\text{→ By using solar energy, we can save natural resources.}$
$\text{6. It’s not necessary for you to complete it by Saturday.}$
$\text{→ You don't have to complete it by Saturday.}$
$\text{7. You forgot to switch on the washing machine, didn’t you?}$
$\text{→ You didn't forget to switch on the washing machine, right?}$
$\text{8. Her neighbour often drives her to the supermarket.}$
$\text{→ She is often driven to supermarket by her neighbour.}$
$\text{9. Work hard or you will fail the coming exam.}$
$\text{→ If you don't work hard, you will fail the coming exam.}$
$\text{10. Lan doesn’t get good marks because she doesn’t work hard enough.}$
$\text{→ Lan doesn't work hard enough so she doesn't get good mark.}$
$\text{-----Done by Lhghbebong-----}$
$\text{Cho mik xin câu trả lời hay nhất, 5 sao và cảm ơn nha.}$