I have learned one thing:Never let your friends down.
举一反三
- "(Never) (I have heard) such (a thing) in my life" (said) the old man. A: Never B: I have heard C: a thing D: said
- Your colleague is , always complaining about one thing or another, never satisfied!
- There is one thing I dislike about him: he will never admit to ______ a mistake. A: have made B: having made C: be made D: make
- The first thing you should have learned at college is to work on your own. It’s time you__ able to manage your time.
- It’s one thing to communicate with your friends on the phone, but it is quite another to a nice letter explaining the same ideas.