【推荐1】我们来之后，这里发生了很大的变化。
Great changes ________________ since we came here.

【推荐2】Discuss ____________(它们何时举行), what they celebrate and ______________(人们那时做些什么). (根据汉语提示完成句子)

【推荐3】Great changes have taken place in the factory. We are working in the factory. (合并成定语从句)
→_________________________________________

【推荐1】谢谢你所做的一切。我期待着你的答复。
Thank you for all________________. I am looking forward to your reply.

【推荐2】根据所给中文用适当的词组填空。
1. After the young couple went aboard, the grandparents ______(接管) parental responsibility for the child.
2. In that society, you were given food if you obeyed orders, but when that system _______ ______(崩溃), people no longer took orders.
3. I would like to design a set of bookmarks _____ _____ (由……组成) four different patterns.
4. ______ ______ (除了) the cold, thin air and low oxygen levels also can cause mountain sickness.
5. The city of Baltimore has a well-known university and hospital that are both _____ _____(以……命名) Johns Hopkins.
6. The drop in birth rate is expected because China over the years has been _____ _____(经历) huge social and economic changes.
7. Mona Lisa in the Grand Louvre ______ _____(代表，象征) the enduring(不朽的) force of art.
8. That cruel crime reminded everyone that international terrorism had _____ _____ _____(对……宣战) the international community.
9. He knew many other firefighters who _____ _____ _____ (罹患……)various illnesses because of the chemicals they were exposed to.
10. I felt sympathetic for the people in the villages who have ______ _____ ____(受够……)fighting and are keen to embrace their future.

【推荐3】这是中国人第一次在太空种蔬菜。
It is the first time that ______________________________ in space.