将2句句子合并成有定语从句的句子
题：Rewrite each pair of sentences,using the retrictive or non-restrictive attributive clase.
1.if you take a walk around the city,you will find some teengers.the teengers are overweight.
2.you minght often see overweight boys and girls . this means that young people's weighthas become a big problem.
3.i think there are two main reasons.why are so many boys and girls overweight ?
4.some teengers don't do enough exercise. they like to play computer games or watch TV in their free time.
5.some other teengers like eating in fast food restaurants.you can see these restaurants everywhere in our city.
6.so there is a Keep Fit Summer Capm in our city.In the camp, the overweight teenagers can take enough exercise and have a healthy diet.