前苏联作家奥斯特洛夫斯基在《钢铁是怎样炼成的》小说中写到:“人的一生应该这样度过:当回忆往事的时候,他不会因虚度年华而悔恨,也不会因碌碌无为而羞愧。”这主要告诉我们 ( )
Mr. Smith left home and went to Shenzhen in his twenties, where he _______ until the 1990s.
. After a heated discussion, the committee finally worked out one _______ to solve the problem.
The number of foreign students attending Chinese universities ______ rising step by step since 1999.
The professor held the crucible the Bunsen flame when heating the substance.
12.—Most of my friends do the shopping online, —That’s really a good idea. Prices of goods _______ online can be lower than store prices.