1) An Amur tiger can also _____ (call) a Siberian tiger.  a) be calling b) be called 2) In the past, Amur tigers could _____ (find) in eastern Russia, northern China, and the Korean peninsula. a) be found b) been found 3) Experts say there might _____ (be) only 540 Amur tigers left in the world today.  a) been b) be 4) In the 1940s, there may _____ (be) only 40 Amur tigers left because of hunting.  a) have been b) had been 5) A reason these numbers could _____ (be) higher today is because the Russian government was the first to grant these tigers full protection.  a) been b) be 6) There might not _____ (be) such an increase in numbers if the government hadn't stepped in to protect them.  a) have been b) has been 7) We must _____ (encourage) industries such as logging, agriculture, and mining to consider the Amur tiger’s habitat as they make business plans. a) encouraged b) encourage

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

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