... best meets their survive needs. C D (survival) 33 . Without the particularly habitat, the species could not survive. A B (particularly) C D 34 . Such human activities as pollution, drainage ... Identification. 31 . Species become extinct or endangerment for a number of reasons, but A (endangered) Bthe primary cause is the destruction of habitat by human activities. C D 32 . Although ... engagement ring was precious! It _______ have cost a fortune.a. must b. should c. can d. needn't 30 . You _______ take your umbrella along with you today. It _______ rain later on this afternoon.a....