几道英语单选问题
1.I'll go to _____ second floor to ask _____ second time
A.the;the B.a:the C.the;a D.a;a
2.My aunt was always busy.She had little time to spend ______ her family
A.;forB.withC.byD.at
3.I'm sorry you 've missed the train . It _____ five mintues ago.
A.leftB.has left C.had leftD.has been left