---Did you go somewhere on holiday?---I ______ to go to Hawaii, but I didn’t sign up for the tour in time.
As birthplace of Huaxia civilization,Xi' an is city with a long history and abundant cultural relics.
If you have any difficulty ____ how to skate, you can turn to Jacky.
He is such a good teacher ______ we all respect.
They are talking _______ they were old friends.
____ it is to skate on real ice!