we should hide under a table to stop things from falling on us and stay away from glass. Unfortunately, none of our furniture was designed for hiding under. "Should we go into the garden?" Zac asked. " No,trees could fall on us! "I said. Actually, Zac had done earthquake drills（训练） at school．He must have been told to hide under a desk and cover his head. But we had nothing to cover our heads in the house.

　　Luckily, before we took any action, the windows stopped moving and the pool calmed down. Everything went back to normal soon. But both my son and I knew what we should do, because we knew if there had been a really big earthquake this morning, we couldn't have escaped from it.

24. When the earthquake started, the author__________.

A. didn 't hear anything

B. was repairing her computer

C. didn't consider it an earthquake

D. was sleeping with her door locked

25. What does the underlined word "emerged " in Paragraph 3 most probably mean?

A. Appeared

B. Jumped

C. Replied

D. Escaped

26. What problem did the author and her son face ?

A. They couldn't get out of the house

B. They couldn 't stop things from falling

C. They couldn't find anything to hide under

D. They couldn't remember what to do in an earthquake

27. The author and her son most probably realized they should_________.

A. replace their furniture

B. build a stronger house

C. receive earthquake drills

D. watch the weather report often