三句英文任你选

　　I'm sorry. I think I must have dialed the wrong number.

　　很抱歉。我想我一定是打错电话了。

　　I must have dialed the wrong number.

　　我准是拨错号码了。

　　I'm afraid you've got the wrong number.

　　恐怕你拨错号码了。

　　半个句型要记牢

　　must have done sth. (准是……，一定……)

　　Tip :表示对过去的肯定的逻辑推测，推定某件事情、动作或状态可能在过去发生过(存在过)。例如 Somebody must have stolen the ring. (肯定有人偷了这枚戒指。)[该句所推断的偷窃动作发生在过去]