The reserve is an important ______ area for the rare red-crowned cranes.
She will have a holiday as soon as she ______ the work next week,
There are cars in the street. It’s crowded.
My father usually drives to work ______ taking the bus.
---Do you know if Jim______ to play basketball with us? ---I think he will come if he ______ free tomorrow.
The art club is for members only. You can’t go in _____ you are a member.