1. When first ________,these products were widely accepted by consumers.(introduce)
    当初次被介绍到市场上时，这些产品很受消费者欢迎。
2. He made it clear________the problem by himself.(solve)
    他澄清自己能解决这个问题。
3. The manager insisted that________the companies who had done something that hurt our feelings.
    (break)
    经理坚持要求我们与伤害了我们感情的公司决裂。
4. By no means________before your parents.(tell)
    你决不能在父母面前撒谎。
5. When you get the paper back, pay special attention to what________.(mark)
    当你拿回试卷时，一定要特别注意那些批改了的地方。
6. She is proud of her two sons,________is now studying in the US.(young)
    她为两个儿子感到自豪，其中年龄小的那个正在美国学习。
7. It is those who are willing to give rather than receive __________to be respected.(deserve)
    是那些宁愿付出而不愿获取的人应该得到尊重。
8. Since 1978,________in this small village.(take)
    自从1978年以来，这个小村庄发生了巨大的变化。
9. She________her homework when her mother asked her to practise playing the piano yesterday.
    (hardly)
    昨天她刚完成作业，妈妈就让她练习弹钢琴。
10. He knows so much about this problem! He________a lot of books.(refer)
    他对于这个问题知道得这么多！他一定是翻阅了大量的书。