1.The car is too small to hold five people.
>>The car is so small that it can't hold five people.
2.lt was really careless of you to do such a wrong thing
>>You are too careless to do such a wrong thing.
3.Mrs Green (cares for) the kids very well
>>Mrs Green takes care of the kids very well
4.The compter broke down
>>The computer didn't work
>>There was something wrong with the computer.
5.The length of time spent exercising( depends on) your physical condition
>>The length of time spent exercising relys on your physical condition.