27.shy 28.came 29.words 30.talk 31.such 32.first 33.read 34.because 35.try
Ⅴ.36.To make them work together in more areas.
37.For silks and spices./Because they wanted more treasures. 38.Two. 39.Bad weather. 40.The Silk Road. Ⅵ.One possible version:
Changes in My Life
With the rapid development of China's economy, great changes have taken place in my life in the past few years.
In my home town, many paths have been turned into wide roads.As a result, it is easier for us to travel. People used to walk or ride bikes to work, but now they often take buses and some even drive their own cars. In schools, students sit in new teaching buildings instead of old houses. There they not only learn from books but also from the Internet.
I hope we will live a better life in the future. I will study much harder so that I can realise my dream.

