評論
打印
1. _______________ (隨著工商業的發展),the number of trees in many big cities has dramatically reduced.
2. Travel can widen our knowledge, _____________ (擴大我們的眼界),and make one open-minded as well.
3. Cars are responsible for most of the smog in cities, _______________ (這已經對環境造成了嚴重的污染).
4.Modernization will be entirely possible in the first half of the 21st century, as long as we ________________(堅持認為)that economic development is the center of all our work.
5. He was convinced on the basis of ____________(當時已出現的情況)that there would be a long and difficult struggle.
