________ I walked into the classroom，the teacher had already started teaching.
A.By the time B.As soon as C.After D.Because
Smoking is bad for our health. Everyone should ________ cigarettes.
A.keep away from B.keep smoking C.keep from D.keep out
I told Johnson the poem was written by me. However，after hearing this，he stared at me ________.
A.in common B.in danger C.in person D.in disbelief
How I wish I could sleep late！However，I had to get up as soon as the alarm clock ___.
A.took off B.went off C.went away D.took away
Becky ______ out of the door before I could stop her.
A. will rush B. had rushed
C. has rushed D. was rushing
My passport has ________. It was in my pocket a moment ago.
A.failed B.disappeared C.finished D.broken
