-I forgot my phone on the train, but luckily someone gave it to railway official.
-How unbelievable! I mean, it____ have been lost.
A.will B.might C. should D.must正确答案B
-I forgot my phone on the train, but luckily someone gave it to railway official.
-How unbelievable! I mean, it____ have been lost.
A.will B.might C. should D.must正确答案B