1. Read the passage carefully and add ONE word in each gap.
We cut down so (1)...trees that there are now vast areas of wasteland. As a result, farmers in parts of
Africa cannot grow enough (2)... eat. In certain countries in Asia, there is too little rice. Moreover, we do
(3)...take enough care of the countryside. Wild animals are quickly disappearing. For instance, tigers are
rare in India now (4)... we have killed too many for them to survive. It isn't enough simply to talk about the
problem. We must act now before it is too late to do anything about it. Join us now. Save the earth!
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