Complete the sentences with the correct form of the verbs in brackets. Use the future simple or present perfect simple.

1. You can't play any computer games until you ... (tidy) up your room!

2. Once I ... (make) a decision I ... (not change) my mind.

3. Mr Roberts ... (call) you back as soon as the meeting ... (finish).

4. We ... (decide) on a solution once we ... (discuss) the problem.

5. As soon as we ... (find) the missing children, we ... (inform) their parents.