一、单项选择（共15小题；每小题1分，满分15分）
（ ）1. ______ earthquake on March 11th was ______ terrible disaster, making thousands of Japanese homeless.
A. An; a B. The; a C. An; the D. The; the
（ ）2. We could hear the frightened people's _____ in the accident.
A. noise B. sound C. shout D. voices
（ ）3. An old friend of my sister's always helps my brother and with English.
A. I; our B. me; ourselves C. I; my D. me; our
