Ⅰ. 单项选择（20分）
1. — ______have you been learning English?
—For over five years.
A. How many B. How often
C. How long D. How soon
【解析】选C。由答语“For over five years. ”可知对持续的时间提问，用how long“多久”。
2. Children are _______ in computer games because they are ______ .
A. interested; interest B. interesting; interested
C. interest; interesting D. interested; interesting
【解析】选D。be interested in “对……感兴趣”；interesting“令人感兴趣的”，常说明事物的特点。故选D。
