In recently years，dust storms take place more             76． ＿＿＿＿＿

and more often in the north of Chinese． They have         77． ＿＿＿＿＿

brought a great deal of trouble to people’s lives．       78． ＿＿＿＿＿

The strong wind blows up the dust，made the air            79． ＿＿＿＿＿

very dirty． It also stops many of people from going       80． ＿＿＿＿＿

out． In past，people raised a large number of sheep．     81． ＿＿＿＿＿

The sheep eat up a great deal of grass and the land        82． ＿＿＿＿＿

became sandy． Now the government have begun to            83． ＿＿＿＿＿

pay attention to the problem． Each year，a lot of         84． ＿＿＿＿＿

money spent on the improvement of the environment．        85． ＿＿＿＿＿
 

参考答案：
76．recently→recent      77．Chinese→China     78．lives→life

79．made→making       80．去掉of     81．past前加the     82．eat→ate

83．have→has          84．√       85．spent前加is