七、
17.A) Because the bottle was empty and useless.
B) Because the wanted to lighten the load of his small plane.
C) Because the bottle might be useful to the native Africans.
D) Because the wanted to amuse the local tribes people.
18.A) A message from the outside world.
B) A warning from the gods.
C) A symbol of misfortune.
D) A gift from the gods.
19.A) The local Africans are peace-loving people.
B) Soda bottles are very precious in some remote areas.
C) A trivial thing may sometimes bring about undesirable
consequences.
D) Caution must be taken in introducing new technology.
20.A) They thought that the gods were all crazy.
B) They were isolated from the outside world.
C) They enjoyed living in the peaceful desert.
D) They worshipped the gods all the more after the incident.
八、
1.A) On Thursday night.
B) On Monday night.