情境反应，选择正确答案。

1. 如果你想知道去电影院怎么走，你会问：[ ]

A. Are you going to the cinema?

B. Excuse me, what time is it?

C. Excuse me, how can I get to the cinema?

2. 如果你想知道你朋友的爸爸是做什么的，你会问：[ ]

A. What does your father do?

B. Who is your father?

C. How is your father?

3. 如果你想询问妈妈上午想去哪里，你会问：[ ]

A. Where are you going in the morning?

B. What would you like for lunch?

C. What are you going to do in the morning?

青霉素钠需做成粉针剂注射使用是由于

A．氢化噻唑环易破坏
B．侧链酰胺易断裂
C．羧基易脱去
D．酰胺环上的取代基易氧化
E．β—内酰胺环易水解和分子重排