based on 5E Grammar Practice ex.1
Choose the correct item.

1. She won't leave
   [as|before] the movie ends.
2. It will be dark
   [as long as|by the time] we arrive at the hotel.
3. You can't go out
   [by the time|until] you clean your room.
4. He's going to university
   [when|as] the new semester starts.
5. I'll call you
   [as soon as|while] I get home.
6. We're going to stay on the beach
   [after |as long as] the weather is fine.
7. We'll go shopping
   [when|while] the shops open.
8. They're going to leave the area
   [whenever|by the time] they sell their house.

Sources:

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