Ⅰ. 单项选择（共15分，每小题1分）
从各题的四个选项中选出一个最佳答案，并将其代表字母填在答题卡上。
1. When I came into the classroom, I saw some girls _______ happily.
A. cry B. talk C. to run D. laughing
1． The number of workers in this factory _______ a lot this year. There were only
a few workers in it two years ago.
A. have increased B. has increased C. have risen D. has booked
2． My grandfather ________ us stories when I was young．
A. was used to tell B. is used to telling
C．are used to tell D．was used to telling
