–How do you like the two pairs of shoes?--They don’t fit me well. They are ______ too big _____ too small.

John, work hard ________ you will make much progress.

It took me two weeks ____ reading the novels written by Guo Jingming. . 

Tom was walking along the riverside when he heard someone calling him from behind. He turned around_______ found nothing.

It was snowing hard_______we had to stay at home and watch TV.