Uzupełnij zdania wyrażeniami:
At last, at least, at the beginning, at the end, at once, at present, at first, at the latest, at the moment.

1. All visitors should leave the space centre by 5.15 .................., because we are closing.
2. For a good telescope, you need to pay .............. 150. Don't get anything cheaper.
3. .............. of the race, Brad was doing well but .................. of the race he was exhausted and almost didn’t finish.
4. Linda will call you later Ok? She’s watching a documentary about space exploration ....................
5. ................. I thought my brother was joking but then I realised that he was serious.
6. ............... after four days the scientists were able to find what was polluting the river.
7................. children are not allowed on space flights.
8. I need to speak to Mary immediately. Tell her to come here ...................!