Dựa vào ngữ cảnh và thì của động từ, đây là những từ phù hợp cho mỗi câu:

12. **have been doing**
13. **managed**
14. **were managing**
15. **choose**
16. **gave**
17. **was looking**
18. **bumped**

Nội dung hoàn chỉnh như sau:

Andy: Yes, of course. That’s what we **have been doing** at first. Actually, in the end my brother **managed** to buy ours.



Jane: Really? Perhaps I’ll talk to my family before we **choose** a flat. That’s not a bad idea. My family **gave** us quite a lot of help!



Andy: Oh yes, I **was looking** for somewhere to sit down when I **bumped** into you. Let’s go.