请教:2016英语专八改错练习题七第4小题如何解答?
An hour of hunting yields in average about 100 edible __4__calories
An hour of hunting yields in average about 100 edible __4__calories
Plant foods provide for 60 percent to 80 percent of the Kung diet, and no __6__one goes hungry when the hunt fails
Interestingly, if they escape fatal infectionsor accidents, these contemporary aborigines live to old ages despite of the absence __7__of medical care.
means that there is a need for servicemen to keep it running properly. __5__People are earning higher wages and salaries.
Some forecasters used __4__methods that seemed to take no connection with the actual
Reindeer herding __4__becomes more difficult so the ice is weak and may give way.
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