(2013·成都一诊)Parents are doing all they ________ to help their children achieve their ambitions.

That was the first time I _____to Hongkong so I had great difficulty _____the hotel.

What great trouble we had______ where his house was. [ ]

Where did you pick up this wallet —It was in the supermarket_____ I did some shopping yesterday.

After Anna had _______ unusual talk with her teacher, she felt cheerful and made up her mind towork very hard during the rest time of her junior life.