Complete the sentences with on/in/at. 1) goodbye! see you __ saturday. 2) i usually get up __ 8 o` clock in the morning. 3) what are you doing __ thursday evening? 4) my granny`s birthday is __ february. 5) i like to look at the moon __night. 6) we often go to the beach __ summer. 7) let`s meet __ 6-30 tomorrow evening. !