Complete the sentences with the linkers from the box.

as soon as

by the time

until

once

before

while



_________ you have finished your homework, you can go for a walk.
I’ve never been to such an expensive restaurant _________.
Please, call me back _________ you receive the documents.
I like spicy dishes _________ my sister prefers sweet desserts.
We should wait _________ morning to open the presents, it’s a tradition.
The children had cleaned the house _________ mom returned from work.