1. I had my bag stolen.
我的包被偷了。
还能这样说：
My bag was stolen.
Somebody stole my bag.
应用解析：
steal a march (on sb.) 偷偷地抢在某人之前;
steal sb.'s heart 巧妙地;博得某人的欢心;
steal into one's heart 渐渐进入心里
2. I had my luggage lost.
我的行李丢了。
还能这样说：
I had lost my suitcase.
My suitcase was missing.
谚语：
An occasion lost cannot be redeemed.
时机失了无法挽回。
3. I forget to take the luggage.
我忘记拿行李了。
还能这样说：
I don't remember to take the luggage.
I fail to bring the luggage.
应用解析：
take one's courage in both hands 勇往直前，敢做敢为;
take by surprise (某人)意料之外
4. Who should I report it to?
我该告诉谁呢?
还能这样说：
Who can I inform this to?
Who can be reported?
应用解析：
of good report 名声好的;
through good and evil report 不管名声好坏;不管舆论如何