Supply the correct form or tense of the verbs in he parentheses

supply the correct form or tense of the verbs in he parentheses
1. What (be).......there (drink) for lunch ?
2. Where your children (be) .............?
3. At the moment we (sit) .........in a cafe . We (wait)..........for the museum to open ,so I (write) some poscarbs .
4. (you/go) abroad for your holiday ?-Well,I (get) a holiday job . I'm going to an agent's on Saturday ( find out ) about it