At the railway station, the mother waved goodbye to her daughter until the train was _______.
Never in my wildest dreams_____these people are living in such poor conditions.
Had I known her name,___________ .
_______,I have never seen anyone who's as capable as John.
So difficult _____it to live in an English-speaking country that I determined to learn English well.
So ____ that no fish can live in it.