1)living in the countryside can help you relax ,__as___ well____ __as___ (也能）make you stronger.
2)You can learn all about the history of computer as well as learn about science.
(改为同义句）
you can learn not—— only—— about science,__but___ __also____ all about the history of coputer.（不但.而且）
at last she decided (to--原句少了一个词）tell us what happened.同义句
finally she _Made__ _up___ _her___ __mind___ to tell us what happened (decide to = make up one's mind to 决定做某事）