f_ not be successful in doing sonething

f_ not be successful in doing sonething f______ (not be successful in doing something) f______ (not be successful in doing someting) be successful in (doing) sth.be successful at (doing) sth. be successful in doing in可省吗 be successful in +doing 还是 to do? 急·have success in doing sth=be successful in doing sth= be successful in doing succeed in doing sth有区别吗? have success at与be successful in 与succeed in doing 的区别 be not worth doing 改错：If carefully doing,the experiment will be successful. 成功做某事是be succeed doing sth 还是 be successful doing sth 还是 suc