题目内容：
My bike was broken yesterday，so I____walk home．
A.might
B.had to
C.must
D.could
参考答案：
答案解析：
选择题：My bike was broken yesterday，so I____walk home．
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- 题目类型：选择题
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一场疾病爆发， 某药企研发出两种新药， 治愈率都是4/5，现在某地出现了5例病例． 将他们分成A，B两组分别用新研发的两种药治疗，A组2人，B组3人（1）求A组
一场疾病爆发， 某药企研发出两种新药， 治愈率都是4/5，现在某地出现了5例病例． 将他们分成A，B两组分别用新研发的两种药治疗，A组2人，B组3人（1）求A组的治愈率不小于B组的治愈率的概率（2）求
A.√2
A.√2
Bill is running so fast!I _________ believe my eyes.
Bill is running so fast!I _________ believe my eyes.
We should speak________when we meet someone for the first time.
We should speak________when we meet someone for the first time.
The old man lives___________ ， but he doesnt feel ________.
The old man lives___________ ， but he doesnt feel ________.