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(Our we could recreate the conditions of the wild, would all the animals locked in 2
? A have been better off (B) will be better off
(C) be better off we
better oft
30 (B Jackson has developed some bad habits since he entered high school. His
parents are worried sick. (A) gradual (B) gradually (C) gradually been
D) being gradual
31. Many captive animals show serious emotional problems being kept in tiny
enclosures. (A) due to (B) result from (C) result in (D) for
32 If there no marine parks, we could be not able to see some beautiful sea
animals and rare underwater creatures. (A) are (B) have (C) had (D)
were
33. (1) Mary would a world famous dancer if she hadn't been injured her legs by
the accident three years ago. (A) be becoming (B) had become (C) become
(D) have become
34. (C) Loneliness, a lack of privacy and long term captivity lead to the mental and physical
health problems of zoo animals.
they usually have shorter lifespans. (A)