Question

13．去年，他们成功地建立了一个污水处理系统．
Last year theysucceededinsetting up a system to solve the water．

Answer 1

分析 succeeded in

解答 答案：succeeded in
表示成功的做某事结合后面的setting用succeed in doing sth，这里是说last year去年的事情用一帮过去时，succeed的过去式succeeded，故答案是succeeded in．

点评 success，名词 可数名词（成功的人或事）； 不可数名词（成功）
如He is a great success as a writer
Failure is the mother of success
succeed，不及物动词 succeed in doing sth
如He succeeded in swimming across the river 
successful形容词，成功的
如 He is a successful writer．