Sure! Here are the sentences with the verbs in brackets filled in with the correct past simple or past continuous tense:

1. He **was sitting** in a bar when I **saw** him.
2. When I **went** out, the sun **was shining**.
3. When it **rained** out while I **had** tea.
4. We **were walking** to the station when it **began** to rain.
5. He **stayed** in Germany for 2 months when he **lived** there as a journalist.
6. The house **was** fast, so we **broke** the window to get out.
7. I **ate** three sandwiches while you **were talking** to him.
8. The servant **dropped** two cups while she **was washing** up last night; neither of them **broke**.
9. While he **was writing** a letter, the telephone **rang**; as he **went** to answer it.

Feel free to ask if you need further assistance!