An Amur tiger can also _____ (call) a Siberian tiger. , be calling, be called, In the past, Amur tigers could _____ (find) in eastern Russia, northern China, and the Korean peninsula. , be found, been found, Experts say there might _____ (be) only 540 Amur tigers left in the world today. , been, be, In the 1940s, there may _____ (be) only 40 Amur tigers left because of hunting. , have been, had been, A reason these numbers could _____ (be) higher today is because the Russian government was the first to grant these tigers full protection. , been, be, There might not _____ (be) such an increase in numbers if the government hadn't stepped in to protect them. , have been, has been, We must _____ (encourage) industries such as logging, agriculture, and mining to consider the Amur tiger’s habitat as they make business plans., encouraged, encourage.

Perspectives 3. Unit 6. Workbook. p. 69, exercise 8

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