从下面每句划线部分中选出错误的那个部分，并加以改正。
【小题1】My teacher advisedme that I solve the problem by the way．
【小题2】Both of her sons joined inthe army two years ago.
【小题3】I can hard wait to goon my trip to France.
【小题4】I have been a friend of Mr White forlong time．
【小题5】No oneelse can stop you to making progress in your studies.by------in
网友回答
(答案→)by------in
解析：
【小题1】by------in 考查介词的用法。此处意为：用这种方法解决问题。故用in the way；
【小题2】joined in ----- joined 考查正确的表达形式。参军为join the army；
【小题3】hard----- hardly 考查句意的改错。Hardly wait to do sth意为：迫不及待地做某事；
【小题4】long time------ a long time 考查名词短语的正确表达。很长时间应为：a long time；
【小题5】to----- from 考查介词的用法。考查短语stop ... from doing sth。