_______ alarm clock is on the desk. It’s _______ red alarm clock.An, an B. A, a C. An, a D. A, an
When the school building began to shake, the teachers ran downstairs ____ all the students. The teachers are real heroes. A. after B. with C. before
Mr. Smith lives ____ that building. His house is ____ the fifth floor.
We will never forget what happened ____ the afternoon of May 12, 2008.
It’s very kind ____ them to pick me up at the railway station and drive me home.
–What do you often do ____ classes to relax yourself? –Listen to music.