几道高中英语时态填空

题目

几道高中英语时态填空
1.As a good photographer,he ____ many prizes while he was in college.(win)
2.I quite appreciate you ____ me out so much during the last project.(help)
3.She listened to Catherine ____ to the music of the recorder.(sing)
4.Don't read on the ____ bus,or your eyesight will get worse.(move)
最好再说说理由

答案