Under criminal law, people who      carry and use large numbers of fake banknotes will be sentenced to less than three years in prison.

I began to fish before memory began, _______ I know I have always fished.

There was such a long queue for coffee at the interval that we ________ gave up.

It is always not easy to live in a foreign country; ____ so if you can’t speak their language. 

 We used to see each other ________，but I haven't heard from him since last year.(2012·辽宁)