l guess(that)和l'm sure(that)造句!英语在线急求

问题描述:

l guess(that)和l'm sure(that)造句!英语在线急求

I guess that she is about thirty years old.
我猜她大约三十岁.
I'm sure that you will do a better job next time.
我相信你下次一定做得更好.