$\text{⇒ Answer:}$
$\text{1. The last time I played football was in 2008.}$
$\text{2. The room is not dirty, so they didn't need to clean it.}$
$\text{3. Unless you phone immediately, you won't get any information.}$
$\text{4. The policeman ordered the children not to play football in the}$
$\text{street.}$ $\text{5. It was wrong of you not to give her a chance to talk.}$
$\text{6. The only person I expect to see now is my son.}$
$\text{7. Women in the US are more independent than those in}$
$\text{other countries.}$
$\text{8. Many foriegners are not accustomed to cold weather in Vietnam.}$
$\text{9. I want to have this suit cleaned and ironed before the meeting.}$
$\text{10. The air we breathe is polluted with exhaust fumes from cars}$
$\text{in the cities.}$