B-5：be expecting 怀孕
A：Where are you going?
A: 你去哪儿？
B: I'll accompany my wife to the hospital.
B: 我陪妻子去医院。
A: What's wrong with her?
A: 她怎么了？
B: Oh, she's expecting.
B：她怀孕了。
A: Congratulations to you.
A：祝贺你。
B: Thank you.
B: 谢谢。
