根据句意和中文提示完成句子。
【小题1】Grandma went to the market and bought some meat, eggs and ______ (西红柿) for lunch.
【小题2】Reading is important, for it can open up an______(未知的) world to us.
【小题3】Many countries speak__________ of china's high-speed railway technologies.
【小题4】John___(后悔) not attending the important conference the day before yesterday.
【小题5】Any person who does something.______ (违反) the law will be put into prison.