The room was so quiet that she could hear the _____ of her heart.
He began to take political science ________ only when he left school.(2013·湖北)
(北京)It was raining heavily.Little Mary felt cold, so she stood ________ to her mother.
He looked ________ at the news that his favorite team had lost the game and felt ________ that Martin should have taken part in it.
After the long journey,the three of them went back home,________.
We used to see each other ________,but I haven't heard from him since last year.(2012·辽宁)