When _______ about their opinion of the effect of modern equipment on their performance of tasks, many young people gave a positive response.

He is afraid to face the difficulty he thinks he’ll have     the driving test tomorrow; he finds it difficult    rid of the worries．

When they had cleaned their bowls in this way, they would sit __________ at the pot with eager eyes, as if they wanted to eat it.

—You were brave enough to raise objection at the meeting.—Well, now I regret _______ that. 

 The traffic rule says young children under the age of four and ____ less than 40 pounds must be in a child safety seat.