1. 众所周知，教师的良好品行会对他们的学生产生良好效应。
    As we all know, teachers' good behaviour can ___________________________ their students.
2. 大卫问他妈妈压缩食品是否能储藏很长时间。
    David asked his mother ___________________________ for a long time or not.
3. 您的建议非常宝贵，对我们的公司帮助很大。
    Your ___________________________________, which help our company a lot.
4. 最后，这个小女孩没办法只好去找妈妈帮忙。
    At last, the little girl _______________________________ her mother for help.
5. 年轻人应该常向别人学习，而不是卖弄。
    Young people should often ________________________________ showing off.
6. 事故发生后，她很担心，不断地打电话给她朋友。
    After the accident, she was so worried _______________________ to her friend.

1. 微波炉可以用来煮饭。
    A microwave oven can _____ _____ _____ cooking.
2. 我们如何解决这个严重的问题？
    How do we _____ _____ the serious problem?
3. 至于索菲，她现在日子过得不错。
    _____ _____ Sophie, she is doing fine.
4. 老师告诉我们噪音对我们的耳朵伤害很大。
    The teacher told us that noise _____ very _____ _____ our ears.
5. 在每一项发明被发明出来之前，爱迪生总要做大量的实验。
    Before each invention was invented, Thomas Edison always did _____ _____ _____ _____.