1、 I can do it blindfolded、
2、 I have every confidence in his promotion、
3、 It's all plain sailing、
4、 Everything will come up roses、
5、 I’m very optimistic about our chances of success、
6、 I'm an optimist、
7、 Your work is bound to be successful、
8、 Everything will be fine、 /Things will turn out all right、 /Things will work out all right、
9、 There's nothing to worry about、
10、一切都会圆满结束的。
11、 I have every confidence in my success、