Task 3 Заполните пропуски в предложениях, используя подходящие наречия just, already или yet. 1.We have not booked our flight tickets ... .

2.They have ... missed their train. It left a minute ago.

3.My brother has worked in the office for 3 years ... .

4.The children have not gone to bed ... .

5. I am not hungry. I have ... had my lunch.