Future time clauses

I'll take care of your cat while you ___ on holiday.

I'll call you ____ I get back from my holiday

When I ____ Paul I'll ask him about his trip to China.

We'll tell them before we _____ backpacking in the mountains.

He won't leave for the airport before you ______there.

We can go away after I ____ all my exams.

We ______ here untill the ticket office opens.

They'll go as soon as the weather _____

If it _____ raining, we won't go to the forest.

I'll come again when she ____ at home.

We'll wait till the line ____ a bit shorter.

While we are waiting, I ____ a sandwich.