The doorbell is ringing.It___Alice,because she ___Washington

问题描述:

The doorbell is ringing.It___Alice,because she ___Washington
A cat't be ,has left for B may be,has been to.C.Mustn't be,has gone to D.May be,has lest for

A
cat't be :不可能是
, has left for:已经离开去了哪里