(27)
A.grow
B.growing
C.growth
D.grown

(29)
A.dead
B.died
C.death
D.deadly

(30)
A.prospect
B.protect
C.prosper
D.protest

(31)
A.choice
B.choose
C.chose
D.chosen

II. Mark the letter A, B, C, or D to indicate the word that dfffers from the other three in the position of the primary stress in each of the following questions.

A.dangerous
B.survivor
C.habitat
D.vulnerable

II. Mark the letter A, B, C, or D to indicate the word that dfffers from the other three in the position of the primary stress in each of the following questions.

A.pollution
B.collision
C.protection
D.valuable

III. Choose the answer A, B, C or D to complete sentences.
Saving species from becoming extinct is crucial for our health and the future of our children.
A.dangerous
B.endanger
C.endangering
D.endangered

III. Choose the answer A, B, C or D to complete sentences.
Cheetah’s tail is during fast running, because it balances the animals and allows fast and sudden turns which happen often when the prey tries to escape.
A.essential
B.basic
C.adequate
D.sufficient

III. Choose the answer A, B, C or D to complete sentences.
Illegal hunting in Namibia, Zimbabwe, and Botswana, puts Africa elephants of extinction.
A.in the verge
B.on the verge
C.on brink
D.in brink

III. Choose the answer A, B, C or D to complete sentences.
They the new bridge by the end of the year.
A.will complete
B.will have completed
C.have complated
D.had been completing