13. More and more farmers give up farming and flock to cities to hunt for better jobs, __________________________ (导致)overpopulation in cities. (result)

12. Hardly _________________________________(他一到) at his office when he realized that he had left his report at home. (arrive)

11．Xu Benyu is so great that _______________________________ (他献身于) the education in a poor village in Guizhou Province. (devote)

20. You will find it difficult to work for her, because she _________________________ (总是提出一些新要求).(put)

19.　 ______________________________ (正如所报道的)in the newspaper, talks between the two countries are making progress.(report) 教育博客

18. He was ill that day. Otherwise, he would have come to attend the party to celebrate ________ (他12岁生日).(twelve) 教育博客

17. Peter has been out of work for half a year, so he wants_________________________ (申请一份工作 ) in this company.(apply) 教育博客

16. Do you have any idea ________________________ (发生了什么事) on the other side of the road? (happen) 教育博客

15. I have lost my umbrella. I ________________________________ (一定丢在) it somewhere outside.(leave) 教育博客

14. The reason why he didn’t attend the conference was ____________________________ (因为他当时在法国访问).(visit) 教育博客