The traffic rule says young children under the age of four and ____ less than 40 pounds must be in a child safety seat.
The __________ look on his face showed that he had enough confidence in himself.
From his __________ expression (表情), we know the meeting is __________.
__________ and short of breath, Andy and Ruby were the first to reach the top of Mount Tai.
The cow __________ by the fire rushed out into the street.
Lucy has a great sense of humour and always keeps her colleagues __________ with her stories.