题干
Tom was so careless that he his right arm when he was riding to school
yesterday．
A：hurts
B：hurt
C：has hurt
D：had hurt
答案(点此获取答案解析）
B
Tom was so careless that he his right arm when he was riding to school
yesterday．
A：hurts
B：hurt
C：has hurt
D：had hurt
，下列说法正确的是（ ）